conversations.from: human
conversations.value: Can you walk me through the solution of: Adam has $100 and wants to spend it to open a rock stand. He can buy rocks for $5 each and sell them for $7 each. If he invests all his money in the rock stand but only sells 60% of his inventory, how much money does he lose?
conversations.from: assistant
conversations.value: He can buy 20 rocks because 100 / 5 = 20
  He sells 12 of these rocks because 20 x .6 = 12
  He makes $84 selling these because 12 x 7 = 84
  He lost $16 on his business because 100 - 84 = 16