Paul rented a car for $129 plus $0.25 per mile. The total bill at the end of his trip was $216.50. Paul wasn't sure his bill was correct, so he set up an equation to determine the number of miles that

Paul rented a car for $129 plus $0.25 per mile. The total bill at the end of his trip was $216.50. Paul wasn't sure his bill was correct, so he set up an equation to determine the number of miles that he drove the car. He came up with the following equation: 129x + $0.25 = $216.50. In the box to the right, explain (in words) whether Paul set up his equation correctly.