Twice last month judy carter rented a car from a car rental company and traveled around the southwest business. the company rents it's car for a daily fee, plus an additional charge per mile driven. judy recalls that her first trip lasted four days, she drove 450 miles, and the rental cost her $199.50. on her second business trip she drove 200 miles in three days, and paid $129 for the rental. find the daily fee, and find the mileage charge.