conversations.from: human
conversations.value: Tyler wants to buy a dictionary that costs $18, a dinosaur book that costs $13, and a children's cookbook that costs $8. He has saved $14 from his allowance. If Tyler earns $5 per hour, how many hours does he have to work to afford his books?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: Tyler wants to purchase books that cost $18 + $13 + $8 = $39.
  Tyler needs $39 and currently has $14, so he needs to earn $39 - $14 = $25.
  Tyler can earn $25 at a rate of $5 per hour by doing 25 / $5 = 5 hours of work.