prompt: Tim decides to start selling necklaces he makes.  He uses 10 charms to make each necklace.  Each charm cost $15.  He sells the necklace for $200.  How much profit does he make if he sells 30?
messages.content: Tim decides to start selling necklaces he makes.  He uses 10 charms to make each necklace.  Each charm cost $15.  He sells the necklace for $200.  How much profit does he make if he sells 30?
messages.role: user
messages.content: Each necklace cost 10*15=$<<10*15=150>>150 to make
  So he makes a profit of 200-150=$<<200-150=50>>50 each
  So his total profit is 50*30=$<<50*30=1500>>1500
  #### 1500
messages.role: assistant