Twice last month, Judy Carter rented a car from a car rental company and traveled around the Southwest on business. The company rents its car for a daily fee, plus an additional charge per mile driven. Judy recalls that her first trip lasted 4 days, she drove 450 miles, and the rental cost her $200.50. On her second business trip she drove 200 miles in 3 days, and paid $127.00. for the rental. Find the daily fee, and find the mileage charge.