conversations.from: human
conversations.value: I need help with this problem:
  The price per organic egg is 50 cents. The price of a tray of eggs that contains 30 eggs is $12. How much can you save, in cents, per egg if you buy a tray versus individual eggs?
conversations.from: assistant
conversations.value: The price per egg in a tray is $12/30 eggs = $0.4/egg.
  The equivalent of $0.4 in cents is $0.4 x 100 cents/dollar = 40 cents.
  Hence, you can save 50 cents - 40 cents = 10 cents per egg if you buy a tray.