conversations.from: human
conversations.value: Cory has $20.00 and she wants to buy two packs of candies that cost $49.00 each. How much money does Cory need so she will be able to buy the pack of candies?
  Solve it.
conversations.from: assistant
conversations.value: The two packs of candy cost $49 x 2 = $98.
  Therefore, Cory needs $98 - $20= $78 to be able to buy two packs of candy.