conversations.from: human
conversations.value: Romeo buys five bars of chocolate at $5 each and sells these chocolates for a total of $90. If he uses packaging material that costs him $2 for each bar of chocolate, how much profit does he make for all the chocolates he sells?
conversations.from: assistant
conversations.value: The selling price for each bar of chocolate is 90/5=$18.
  The profit for each bar of chocolate is 18-5-2=$11.
  The total profit is 11*5=$55.