prompt: Roxanne bought 2 cups of lemonade for $2 each and 2 sandwiches for $2.50 each. How much change must she get from a $20 bill?
messages.content: Roxanne bought 2 cups of lemonade for $2 each and 2 sandwiches for $2.50 each. How much change must she get from a $20 bill?
messages.role: user
messages.content: Two cups of lemonade amount to $2 x 2 = $<<2*2=4>>4.
  Two sandwiches amount to $2.50 x 2 = $<<2.5*2=5>>5.
  So, the total amount that Roxanne had to pay was $4 + $5 = $<<4+5=9>>9.
  Thus, her change must be $20 - $9 = $<<20-9=11>>11.
  #### 11
messages.role: assistant