conversations.from: human
conversations.value: James gets a cable program.  The first 100 channels cost $100 and the next 100 channels cost half that much.  He splits it evenly with his roommate.  How much did he pay?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: The next 100 channels cost 100/2=$50
  So the total cost is 100+50=$150
  So he pays 150/2=$75