conversations.from: human
conversations.value: Louise is in a toy store. She already has 28 toys worth $10 each in her cart. On her way to the till she adds 20 teddy bears to the cart. If the $580 in Louise’s wallet is exactly enough to pay for all the toys, how much does each teddy bear cost?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: Initially, Louise's cart has toys worth 10 * 28 = 280 dollars
  If Louise pays for the toys originally in her cart, her wallet will remain with 580 - 280 = 300 dollars.
  Dividing the remaining amount by the number of teddy bears gives 300/20 = 15 dollars.