prompt: Maria has a pen and a pencil. She bought the pen for half the price of the pencil. The pencil cost her $8. How much did Maria pay for both the pen and the pencil?
messages.content: Maria has a pen and a pencil. She bought the pen for half the price of the pencil. The pencil cost her $8. How much did Maria pay for both the pen and the pencil?
messages.role: user
messages.content: The pen is half the price of the pencil, so it's 8 * 0.5 = $<<8*0.5=4>>4.
  So both the pen and the pencil cost Maria 8 + 4 = $<<8+4=12>>12.
  #### 12
messages.role: assistant