diff --git a/ex19.rb b/ex19.rb
new file mode 100644
index 0000000..7dc1db4
--- /dev/null
+++ b/ex19.rb
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+def cheese_and_crackers(cheese_count, boxes_of_crackers)
+  puts "You have #{cheese_count} cheeses!"
+  puts "You have #{boxes_of_crackers} boxes of crackers!"
+  puts "Man that's enough for a party!"
+  puts "Get a blanket."
+  puts # a blank line
+end
+
+puts "We can just give the function numbers directly:"
+cheese_and_crackers(20, 30)
+
+puts "OR, we can use variables from our script:"
+amount_of_cheese = 10
+amount_of_crackers = 50
+cheese_and_crackers(amount_of_cheese, amount_of_crackers)
+
+puts "We can even do math inside too:"
+cheese_and_crackers(10 + 20, 5 + 6)
+
+puts "And we can combine the two, variables and math:"
+cheese_and_crackers(amount_of_cheese + 100, amount_of_crackers + 1000)