conversations.from: human
conversations.value: This math problem has got me stumped: At Peanut Emporium, peanuts cost $3 per pound with a 15-pound minimum. If Baxter spent $105 on peanuts, how many pounds over the minimum did he purchase?
  Can you show me the way?
conversations.from: assistant
conversations.value: Start by figuring the number of pounds Baxter bought. $105 / $3 per pound = 35 pounds of peanuts
  35 pounds bought - 15 pounds minimum = 20 pounds over.