sm P6-21 (similar to) Question Help (Annuity number of periods) You've just bought a new flat-screen TV for $4,000 and the store you bought it from offers to let you finance the entire purchase at a annual rate of 13 percent compounded monthly. If you take the financing and make monthly payments of $150, how long will it take to pay off the loan? How much you pay in interest over the life of the loan