A farmer is buying a new tractor valued at $75,000. The dealer will allow $15,000 on the trade-in of the old tractor, leaving a balance to be financed by one of the following three methods. Compute the annual percentage rate for each method. Which one is the most inexpensive? Show your work. Do your best to follow the formulas in the text, we will review this in class! a. The local office of the Farm Credit System will make a 4-year loan with equal annual payments of principal and interest at a 12% contractual interest rate with a $300 loan fee and 10% stock requirement. ( 2 pts) b. The local bank will also make a 4-year loan with equal annual payments of principal and interest at a 13% contractual interest rate with a 5% compensating balance requirement. (2pts) c. The manufacturer will make a 4-year loan with equal payments of principal and interest, with interest computed at 10% add-on. (2 pts)