Two rental car companies are running specials this month. At Gavin’s Rentals, customers will pay $56 to rent a mid-sized car for the first day, plus $3 for each additional day. At Wildgrove Rent-a-Car, the price for a mid-sized car is $53 for the first day and $6 for every additional day beyond that. At some point, renting from either one of the companies would cost a customer the same amount. How many additional days would that take? How much would the customer pay?