5. a) Find the finance charges on a 5.5 percent, 18-month, single-payment loan when interest is computed using the simple interest method. Assume that the loan amount requested is $1,000. b) Determine the APR in this case. Round your answer to two decimal places. c) Find the finance charges on the same loan when interest is computed using the discount method. Round your answer to the nearest cent. d) Determine the APR in this case. Round your answer to two decimal places.