Twice last month, Judy Carter rented a car from Enterprise in Fresno, California, and traveled around the southwest on business. Enterprise rents its cars 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 $252.50. One her second business trip she drove 200 miles in 3 days, and paid $155.00 for the rental. Find the daily fee and the mileage charge.

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