Task: Question Answering
Input (English): Problem: it costs $ 5 for the first 1 / 3 hour to use the laundry machine at the laundromat. after the first ¼ hour it costs $ 12 per hour. if a certain customer uses the laundry machine for 2 hours and 30 minutes, how much will it cost him ?
Options: a. $ 27., b. $ 29., c. $ 31., d. $ 33., e. $ 35.
Output (English): c