diff --git a/ch09-writing-your-own-methods/ask.rb b/ch09-writing-your-own-methods/ask.rb
index 01716eb35..6f2ef9e8d 100644
--- a/ch09-writing-your-own-methods/ask.rb
+++ b/ch09-writing-your-own-methods/ask.rb
@@ -1,3 +1,34 @@
 def ask question
-  # your code here
-end
\ No newline at end of file
+  while true
+    puts question
+    input = gets.chomp.downcase
+    if input == 'yes'
+      return true
+    elsif input == 'no'
+      return false
+    else
+      puts "please answer yes or no"
+    end
+  end
+end
+
+puts "Hello and thank you for participating"
+puts
+
+ask "Do you like tacos?"
+ask "Do you like burritos?"
+wets_bed = ask "Do you wet the bed"
+ask "Do you like chimichangas?"
+ask "Do you like sopapillas?"
+puts "just a couple more..."
+ask "Do you like horchata?"
+ask "Do you like flautas?"
+
+puts
+puts "Debriefing:"
+puts "Thank you for participating"
+puts
+puts
+puts
+
+puts wets_bed
diff --git a/ch09-writing-your-own-methods/old_school_roman_numerals.rb b/ch09-writing-your-own-methods/old_school_roman_numerals.rb
index ca6589f2d..396bf12c2 100644
--- a/ch09-writing-your-own-methods/old_school_roman_numerals.rb
+++ b/ch09-writing-your-own-methods/old_school_roman_numerals.rb
@@ -1,3 +1,14 @@
 def old_roman_numeral num
-  # your code here
-end
\ No newline at end of file
+  roman = ''
+
+roman = roman + 'M' * (num / 1000)
+  roman = roman + 'D' * (num % 1000 / 500)
+  roman = roman + 'C' * (num % 500 / 100)
+  roman = roman + 'L' * (num % 100 / 50)
+  roman = roman + 'X' * (num % 50 / 10)
+  roman = roman + 'V' * (num % 10 / 5)
+  roman = roman + 'I' * (num % 5 / 1)
+  roman
+end
+
+# puts(old_roman_numeral(1999))
diff --git a/ch09-writing-your-own-methods/roman_numerals.rb b/ch09-writing-your-own-methods/roman_numerals.rb
index 5c93b59ac..72a358479 100644
--- a/ch09-writing-your-own-methods/roman_numerals.rb
+++ b/ch09-writing-your-own-methods/roman_numerals.rb
@@ -1,3 +1,35 @@
 def roman_numeral num
-  # your code here
-end
\ No newline at end of file
+  raise 'Must use positive integer' if num <= 0
+
+  digit_vals = [['I', 5, 1],
+                ['V', 10, 5],
+                ['X', 50, 10],
+                ['L', 100, 50],
+                ['C', 500, 100],
+                ['D', 1000, 500],
+                ['M', nil, 1000]]
+
+  roman = ''
+  remaining = nil
+
+  # Build string "roman" in reverse.
+  build_rev = proc do |l,m,n|
+    num_l = m ? (num % m / n) : (num / n)
+    full  = m && (num_l == (m/n - 1))
+
+  if full && (num_l>1 || remaining)
+    # must carry
+    remaining ||= l # carry l if not already carrying
+  else
+    if remaining
+      roman << l + remaining
+      remaining = nil end
+      roman << l * num_l
+    end
+  end
+  digit_vals.each {|l,m,n| build_rev[l,m,n]}
+
+  roman.reverse
+end
+
+# puts(old_roman_numeral(1999))
diff --git a/ch10-nothing-new/dictionary_sort.rb b/ch10-nothing-new/dictionary_sort.rb
index c9893d0fd..8d5618b01 100644
--- a/ch10-nothing-new/dictionary_sort.rb
+++ b/ch10-nothing-new/dictionary_sort.rb
@@ -1,3 +1,56 @@
-def dictionary_sort arr
-  # your code here
-end
\ No newline at end of file
+
+=begin
+def sort some_array
+  recursive_sort some_array, []
+end
+
+
+def recursive_sort unsorted_array, sorted_array
+  sorted_array = unsorted_array.sort { |x, y| x <=> y }
+end
+
+puts sort ["meems", "meems", "freems", "frrops", "zeeps", "haha"]
+=end
+
+
+
+
+# The well-known quicksort algorithm.
+=begin
+def sort arr
+  return arr if arr.length <= 1
+
+  if arr.pop.capitalize != arr.pop
+    middle = arr.pop
+    less = arr.select{|x| x < middle}
+    more = arr.select{|x| x >= middle}
+
+  elsif arr.pop.capitalize == arr.pop
+    middle = arr.pop
+    less = arr.select{|x| x < middle}
+    more = arr.select{|x| x >= middle}
+
+  end
+sort(less) + [middle] + sort(more)
+end
+p(sort(['blablabla', 'car', 'Alpha', 'zebra']))
+=end
+
+def super_sort unsorted_array
+  capitalized = unsorted_array.select {|x| x.capitalize == x}
+  uncapitalized = unsorted_array.select {|x| x.capitalize != x}
+  capitalized.sort! {|x, y| x <=> y }
+  uncapitalized.sort! {|x, y| x <=> y }
+  puts capitalized
+  puts
+  puts
+  puts uncapitalized
+=begin
+      if x == x.capitalize
+      capitals << x
+      puts capitals
+=end
+
+end
+
+super_sort ["baaa", "Baa", 'car', 'Car']
diff --git a/ch10-nothing-new/english_number.rb b/ch10-nothing-new/english_number.rb
index c0129bc4e..e01167245 100644
--- a/ch10-nothing-new/english_number.rb
+++ b/ch10-nothing-new/english_number.rb
@@ -1,3 +1,130 @@
 def english_number number
-  # your code here
+  if number < 0 # No negative numbers.
+    return 'Please enter a number that isn\'t negative.'
+  end
+  if number == 0
+    return 'zero'
+  end
+
+  # No more special cases! No more returns!
+
+  num_string = '' # This is the string we will return.
+
+  ones_place = ['one', 'two', 'three',
+                'four', 'five', 'six',
+                'seven', 'eight', 'nine']
+
+  tens_place = ['ten', 'twenty', 'thirty',
+                'forty', 'fifty', 'sixty',
+                'seventy', 'eighty', 'ninety']
+
+
+  teenagers = ['eleven', 'twelve', 'thirteen',
+               'fourteen', 'fifteen', 'sixteen',
+               'seventeen', 'eighteen', 'nineteen']
+
+  zillions = [['hundred', 2],
+              ['thousand', 3],
+              ['million', 6],
+              ['billion', 9],
+              ['trillion', 12],
+              ['quadrillion', 15],
+              ['quintillion', 18],
+              ['sextillion', 21],
+              ['septillion', 24],
+              ['octillion', 27],
+              ['nonillion', 30],
+              ['decillion', 33],
+              ['undecillion', 36],
+              ['duodecillion', 39],
+              ['tredecillion', 42],
+              ['quattuordecillion', 45],
+              ['quindecillion', 48],
+              ['sexdecillion', 51],
+              ['septendecillion', 54],
+              ['octodecillion', 57],
+              ['novemdecillion', 60],
+              ['vigintillion', 63],
+              ['googol', 100]]
+
+  # "left" is how much of the number
+  # we still have left to write out.
+  # "write" is the part we are
+  # writing out right now.
+  # write and left...get it? :)
+  left = number
+
+  while zillions.length > 0
+    zil_pair = zillions.pop
+    zil_name = zil_pair[0]
+    zil_base = 10 ** zil_pair[1]
+    write = left/zil_base # How many zillions left?
+    left = left - write*zil_base # Subtract off those zillions.
+
+    if write > 0
+      # Now here's the recursion:
+      prefix = english_number write
+      num_string = num_string + prefix + ' ' + zil_name
+
+      if left > 0
+        # So we don't write 'two billionfifty-one'...
+        num_string = num_string + ' '
+      end
+    end
+  end
+
+  write = left/10 # How many tens left?
+  left = left - write*10 # Subtract off those tens.
+
+  if write > 0
+    if ((write == 1) and (left > 0))
+      # Since we can't write "tenty-two" instead of
+      # "twelve", we have to make a special exception
+      # for these.
+      num_string = num_string + teenagers[left-1]
+      # The "-1" is because teenagers[3] is
+      # 'fourteen', not 'thirteen'.
+
+      # Since we took care of the digit in the
+      # ones place already, we have nothing left to write.
+      left = 0
+    else
+      num_string = num_string + tens_place[write-1]
+      # The "-1" is because tens_place[3] is
+      # 'forty', not 'thirty'.
+    end
+
+    if left > 0
+      # So we don't write 'sixtyfour'...
+      num_string = num_string + '-'
+    end
+  end
+
+  write = left # How many ones left to write out?
+  left = 0 # Subtract off those ones.
+
+  if write > 0
+    num_string = num_string + ones_place[write-1]
+    # The "-1" is because ones_place[3] is
+    # 'four', not 'three'.
+  end
+
+  # Now we just return "num_string"...
+  num_string
 end
+
+# puts english_number( 0)
+# puts english_number( 9)
+# puts english_number( 10)
+# puts english_number( 11)
+# puts english_number( 17)
+# puts english_number( 32)
+# puts english_number( 88)
+# puts english_number( 99)
+# puts english_number(100)
+# puts english_number(101)
+# puts english_number(234)
+# puts english_number(3211)
+# puts english_number(999999)
+# puts english_number(1000000000000)
+# puts english_number(109238745102938560129834709285360238475982374561034)
diff --git a/ch10-nothing-new/ninety_nine_bottles_of_beer.rb b/ch10-nothing-new/ninety_nine_bottles_of_beer.rb
index 801de24bd..42ac44f40 100644
--- a/ch10-nothing-new/ninety_nine_bottles_of_beer.rb
+++ b/ch10-nothing-new/ninety_nine_bottles_of_beer.rb
@@ -1 +1,15 @@
-# your code here
\ No newline at end of file
+require_relative 'english_number'
+
+@number = 100
+
+while @number > 0
+  if @number > 1
+    puts ((english_number @number) + ' bottles of beer on the wall, ' +
+    (english_number @number) + ' Bottles of beer!')
+    puts ('Take one off the wall and pass it around or smth, ' +
+    (english_number (@number - 1)) + ' Bottles of beer on the wall!')
+  elsif @number == 1
+    puts "One bottle of beer on the wall."
+  end
+  @number = @number - 1
+end
diff --git a/ch10-nothing-new/shuffle.rb b/ch10-nothing-new/shuffle.rb
index a486ad94c..45cd45994 100644
--- a/ch10-nothing-new/shuffle.rb
+++ b/ch10-nothing-new/shuffle.rb
@@ -1,3 +1,16 @@
 def shuffle arr
-  # your code here
-end
\ No newline at end of file
+  random = Random.new.rand(1..3)
+  operand = arr.pop
+  c = 100
+  while c > 0
+    if random > 2
+      operand.prepend arr
+    else
+      operand << arr
+    end
+    c = c - 1
+  end
+  return arr
+end
+
+shuffle(['hi', 'bye', 'yes', 'no'])
diff --git a/ch10-nothing-new/sort.rb b/ch10-nothing-new/sort.rb
deleted file mode 100644
index 44c6deb58..000000000
--- a/ch10-nothing-new/sort.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-def sort arr
-  # your code here
-end
\ No newline at end of file
diff --git a/ch10-nothing-new/test.rb b/ch10-nothing-new/test.rb
new file mode 100644
index 000000000..e48180ce2
--- /dev/null
+++ b/ch10-nothing-new/test.rb
@@ -0,0 +1,7 @@
+arr = ['Cayman']
+
+if arr.pop.capitalize == arr.pop
+  puts "It's capitalized"
+else
+  puts "it isn't"
+end
diff --git a/ch11-reading-and-writing/safer_picture_downloading.rb b/ch11-reading-and-writing/safer_picture_downloading.rb
index 801de24bd..587526c9c 100644
--- a/ch11-reading-and-writing/safer_picture_downloading.rb
+++ b/ch11-reading-and-writing/safer_picture_downloading.rb
@@ -1 +1,29 @@
-# your code here
\ No newline at end of file
+Dir.chdir '/users/michaelcalvey/Desktop/Music/'
+
+pic_names = Dir['F:/**/*.jpg']
+puts "What would you like to call this batch?"
+
+batch_name = gets.chomp
+
+puts
+print "Downloading #{pic_names.length} files:  "
+
+pic_number = 1
+
+pic_names.each do |name|
+  print '.'
+
+  if File.exists?("#{batch_name}#{pic_number}.jpg") == true
+    puts "File already exists, skipping..."
+    exit
+  else
+    new_name = if pic_number < 10
+      "#{batch_name}#{pic_number}.jpg"
+    else
+      "#{batch_name}#{pic_number}.jpg"
+    end
+  end
+  File.rename name, new_name
+  pic_number = pic_number + 1
+end
+puts
diff --git a/ch12-new-classes-of-objects/happy_birthday.rb b/ch12-new-classes-of-objects/happy_birthday.rb
index 801de24bd..cb803fc93 100644
--- a/ch12-new-classes-of-objects/happy_birthday.rb
+++ b/ch12-new-classes-of-objects/happy_birthday.rb
@@ -1 +1,39 @@
-# your code here
\ No newline at end of file
+puts "What year were you born?"
+year = gets.chomp.to_i
+puts "What month were you born"
+month_str = gets.chomp.downcase
+if month_str == "january"
+  month = 1
+elsif month_str == "february"
+  month = 2
+elsif month_str == "march"
+  month = 3
+elsif month_str == "april"
+  month = 4
+elsif month_str == "may"
+  month = 5
+elsif month_str == "june"
+  month = 6
+elsif month_str == "july"
+  month = 7
+elsif month_str == "august"
+  month = 8
+elsif month_str == "september"
+  month = 9
+elsif month_str == "october"
+  month = 10
+elsif month_str == "november"
+  month = 11
+elsif month_str == "december"
+  month = 12
+elsif month_str.to_1 < 13
+else
+  puts "you did not enter a valid month, application failed."
+end
+
+puts "What day were you born?"
+day = gets.chomp.to_i
+
+birthday = Time.local(year, month, day)
+
+puts ("Spank!" * ((Time.now - birthday) / 31536000))
diff --git a/ch12-new-classes-of-objects/one_billion_seconds.rb b/ch12-new-classes-of-objects/one_billion_seconds.rb
index 801de24bd..7bc4dd250 100644
--- a/ch12-new-classes-of-objects/one_billion_seconds.rb
+++ b/ch12-new-classes-of-objects/one_billion_seconds.rb
@@ -1 +1,2 @@
-# your code here
\ No newline at end of file
+birthday = Time.local(1998, 05, 15, 12)
+puts (birthday + 1000000000)
diff --git a/ch12-new-classes-of-objects/party_like_its_roman_to_integer_mcmxcix.rb b/ch12-new-classes-of-objects/party_like_its_roman_to_integer_mcmxcix.rb
index 037b6cb09..bc0107107 100644
--- a/ch12-new-classes-of-objects/party_like_its_roman_to_integer_mcmxcix.rb
+++ b/ch12-new-classes-of-objects/party_like_its_roman_to_integer_mcmxcix.rb
@@ -1,3 +1,32 @@
 def roman_to_integer roman
-  # your code here
-end
\ No newline at end of file
+  digit_vals = {'i' => 1,
+                'v' => 5,
+                'x' => 10,
+                'l' => 50,
+                'c' => 100,
+                'd' => 500,
+                'm' => 1000}
+  total = 0
+  prev = 0
+  roman.reverse.each_char do |c_or_C|
+    c = c_or_C.downcase
+    val = digit_vals[c]
+    if !val
+      puts 'This is not a valid roman numeral!'
+      return
+    end
+
+    if val < prev
+      val *= -1
+    else
+      prev = val
+    end
+
+    total += val
+  end
+
+  total
+end
+
+puts(roman_to_integer('mcmxcix'))
+puts(roman_to_integer('CCCLXV'))
diff --git a/ch13-creating-new-classes/dice_roll.rb b/ch13-creating-new-classes/dice_roll.rb
new file mode 100644
index 000000000..aa59a42a4
--- /dev/null
+++ b/ch13-creating-new-classes/dice_roll.rb
@@ -0,0 +1,24 @@
+class Die
+
+  def initialize
+    roll
+    cheat
+    showing
+  end
+
+  def roll
+    @number_showing = 1 + rand(6)
+  end
+
+  def cheat
+    puts "enter number:"
+    @number_showing = gets.chomp.to_i
+  end
+
+  def showing
+    puts @number_showing
+  end
+
+end
+
+die = Die.new
diff --git a/ch13-creating-new-classes/interactive_baby_dragon.rb b/ch13-creating-new-classes/interactive_baby_dragon.rb
index 801de24bd..0b5d70cd6 100644
--- a/ch13-creating-new-classes/interactive_baby_dragon.rb
+++ b/ch13-creating-new-classes/interactive_baby_dragon.rb
@@ -1 +1,77 @@
-# your code here
\ No newline at end of file
+class Dragon
+
+  def initialize
+    puts "Please select a name"
+    @name = gets.chomp
+    @sleep = false
+    self.menu
+  end
+
+  def feed
+    puts "Feeding #{@name}..."
+    sleep 2
+    puts "MMMM #{@name} is fed!"
+  end
+
+  def put_to_bed
+    puts "You put #{@name} to bed"
+    @sleep = true
+  end
+
+  def asleep?
+    if @sleep
+      puts "The dragon is sleeping"
+    end
+  end
+
+  def wake
+    if @sleep
+      @sleep = false
+      puts "The dragon is awake!"
+    else
+      puts "The dragon is already awake!"
+    end
+  end
+
+  def menu
+
+    puts "What would you like to do with #{@name}"
+    puts "Press 1 for feed, 2 for put to bed and three 3 for wake"
+    @input = gets.chomp.to_i
+
+    if @input == 1
+      self.feed
+    elsif @input == 2
+      self.put_to_bed
+    elsif @input == 3
+      self.wake
+    end
+=begin
+    @@commands.each do |number, command|
+      if @input == number
+        self.(command)
+      else
+        puts "input not recognized"
+      end
+    end
+=end
+
+    puts "Would you like to leave the dragon? [yes/no]"
+    leave = gets.chomp.downcase
+
+    if leave == 'yes'
+      exit
+    elsif leave == 'no'
+      self.menu
+    else
+      puts "input not recognised, please try again"
+      self.menu
+    end
+
+
+  end
+end
+
+
+
+dragon = Dragon.new
diff --git a/ch13-creating-new-classes/orange_tree.rb b/ch13-creating-new-classes/orange_tree.rb
index 025d08907..f6bd20feb 100644
--- a/ch13-creating-new-classes/orange_tree.rb
+++ b/ch13-creating-new-classes/orange_tree.rb
@@ -7,5 +7,34 @@
 
 
 class OrangeTree
-  # your code here
+
+  def initialize
+    @@age = 0
+    @@height = 0
+    while @@age < 25
+      self.grow
+      if @@age > 5
+        self.oranges
+      end
+      @@age = @@age + 1
+    end
+    if @@age == 25
+      self.dies
+    end
+  end
+
+  def grow
+    puts "the tree grows. It is now 0.4 taller."
+    @@height = @@height + 0.4
+  end
+
+  def oranges
+    puts "The orange tree produces #{(@@age * 5)} oranges this year."
+  end
+
+  def dies
+    puts "The tree grows old and dies"
+  end
 end
+
+OrangeTree.new
diff --git a/ch14-blocks-and-procs/better_program_logger.rb b/ch14-blocks-and-procs/better_program_logger.rb
index 0e2e18d57..97b33ee90 100644
--- a/ch14-blocks-and-procs/better_program_logger.rb
+++ b/ch14-blocks-and-procs/better_program_logger.rb
@@ -1,3 +1,12 @@
 def log desc, &block
-  # your code here
-end
\ No newline at end of file
+  puts "Beginning #{desc}..."
+  block.call
+  puts "Finishing #{desc}..."
+end
+
+log "Outer block" do
+  number = 5
+  log "Inner block" do
+    puts "  THIS IS THE INNER BLOCK!"
+  end
+end
diff --git a/ch14-blocks-and-procs/even_better_profiling.rb b/ch14-blocks-and-procs/even_better_profiling.rb
index b01b78fd8..d06c20dd2 100644
--- a/ch14-blocks-and-procs/even_better_profiling.rb
+++ b/ch14-blocks-and-procs/even_better_profiling.rb
@@ -1,3 +1,27 @@
 def profile block_description, &block
-  # your code here
-end
\ No newline at end of file
+  works = 'yes'
+  if works == 'yes'
+    start_time = Time.new
+    block.call
+    duration = Time.new - start_time
+    puts "#{block_description}:  #{duration} seconds"
+  end
+end
+
+profile '25000 doublings' do
+  number = 1
+
+  25000.times do
+    number = number + number
+  end
+
+  puts "#{number.to_s.length} digits"
+  puts "#{number}"
+end
+
+profile 'count to a million' do
+  number = 0
+  1000000.times do
+    number = number + 1
+  end
+end
diff --git a/ch14-blocks-and-procs/program_logger.rb b/ch14-blocks-and-procs/program_logger.rb
index 0e2e18d57..0cb802b6c 100644
--- a/ch14-blocks-and-procs/program_logger.rb
+++ b/ch14-blocks-and-procs/program_logger.rb
@@ -1,3 +1,12 @@
 def log desc, &block
-  # your code here
-end
\ No newline at end of file
+  puts "Beginning #{desc}..."
+  block.call
+  puts "Finishing #{desc}..."
+end
+
+log "Outer block" do
+  number = 5
+  log "Inner block" do
+    puts "THIS IS THE INNER BLOCK!"
+  end
+end