Use the following formula int n Suppose that you drive 30,000 miles per year and gas averages $4 per gallon. Complete parts a, and b. below. a. What will you save in annual fuel expenses by owning a hybrid car averaging 30 miles per gallon rather than an SUV averaging 9 miles per gallon? (Round to the nearest dollar as needed) b. If you deposit your monthly fuel savings at the end of each month into an annuity that pays 52% compounded monthly, how much will have saved at the end of four years? $ (Round to the nearest dollar as needed)