conversations.from: human
conversations.value: Explain how to solve this math problem: To make a shed in his backyard, Tom needs 1000 bricks. He can buy half of the bricks for 50% off of $.50. The other Half he needs to pay full price. How many dollars does Tom spend?
conversations.from: assistant
conversations.value: Tom can buy 1000/2=500 for half price.
  He will spend $.50/2= $.25 on the half-priced bricks.
  Thus, he will spend 500*$.25=$125 on the half-priced bricks.
  He will spend 500*$.50=$250 on the full-priced bricks.
  Thus, he will spend $125+$250=$375 total.