In August 2008, a car manufacturing company was offering the choice of a 3 9% loan for 60 months, or $4000 cash back on the purchase of a $33,795 car. (a) If someone took the 3.9% loan offer, how much will the monthly payment be? (b) If someone took the $4000 cash-back offer and can borrow money from their local credit union at 6.6% interest compounded monthly for five years, how much will the monthly payment be? (c) Which of the two offers is more favorable