prompt: Chris bought 8 movies on DVD for $12 each and 4 movies on Blu-ray for $18 each. What is the average price he paid per movie?
messages.content: Chris bought 8 movies on DVD for $12 each and 4 movies on Blu-ray for $18 each. What is the average price he paid per movie?
messages.role: user
messages.content: He spent a total of 8 * $12 + 4 * $18 = $<<8*12+4*18=168>>168
  He bought a total of 8 + 4 = <<8+4=12>>12 movies.
  The average price is $168 / 12 = $<<168/12=14>>14 per movie.
  #### 14
messages.role: assistant