conversations.from: human
conversations.value: Solve the following math problem: Peter purchased 20 popsicles at $0.25 each. He also purchased 4 ice cream bars at $0.50 each. How much did he pay in total in dollars?
conversations.from: assistant
conversations.value: The popsicles cost 0.25*20=5 dollars.
  The ice cream bars cost 0.5*4=2 dollars.
  He paid 5+2=7 dollars.