prompt: Four tires and one battery together cost $224. Each tire costs $42. Calculate the price of the battery.
messages.content: Four tires and one battery together cost $224. Each tire costs $42. Calculate the price of the battery.
messages.role: user
messages.content: Four tires cost $42 x 4 = $<<42*4=168>>168.
  So, the price of the battery is $224 - $168 = $<<224-168=56>>56.
  #### 56
messages.role: assistant