conversations.from: human
conversations.value: I need help with this problem:
  Janet bought some muffins at the bakery. Each muffin is 75 cents. Janet paid $20 and got $11 in change back. How many muffins did Janet buy?
conversations.from: assistant
conversations.value: Janet paid with $20 and got back $11, so her muffins cost $20 - $11 = $9.
  Each muffin cost 75 cents, so she bought 9/.75 = 12 muffins