conversations.from: human
conversations.value: I would love to understand how to solve this problem: James rents his car out for $20 an hour.  He rents it for 8 hours a day 4 days a week.  How much does he make a week?
  Can you explain?
conversations.from: assistant
conversations.value: He rents it out for 8*4=32 hours
  That means he makes 32*20=$640