prompt: Gemma ordered four pizzas at $10 each, and she gave a $5 tip to the delivery person. How much change did she get back if she gives one fifty-dollar bill?
messages.content: Gemma ordered four pizzas at $10 each, and she gave a $5 tip to the delivery person. How much change did she get back if she gives one fifty-dollar bill?
messages.role: user
messages.content: The cost of the four pizzas is 4 x $10 = $<<4*10=40>>40.
  The total cost, including the tip, is $40 + $5= $<<40+5=45>>45.
  Therefore, Gemma gets a change of $50 - $45 = $<<50-45=5>>5.
  #### 5
messages.role: assistant