Automobile repair shops typically recommend that their customers change their oil and oil filter every 3,500 miles. Your automobile user's manual suggests changing your oil every 5,500-7,500 miles. If you drive your car 57,750 miles each year and an oil and filter change costs $30, how much money would you save each year if you had this service performed every 5,500 miles? Your savings will be $ per year. (Round to the nearest cent.)