Please answer the following question by reasoning step-by-step.
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?

75
The next 100 channels cost 100 / 2 = $50.

So the total cost is 100 + 50 = $150.

So he pays 150 / 2 = $75.

.

The answer is 75