Suppose that you drive 40,000 miles per year and gas averages $4 per gallon. (i) What will you save in annual fuel expenses by owning a hybrid car averaging 40 miles per gallon rather than an SUV averaging 20 miles per gallon? (ii) If you deposit your monthly fuel savings at the end of each month into an annuity that pays 5.9% compounded monthly, how much will you have saved at the end of seven years?