An instaliment coetract for the purchase of a car requires payments of $272.71 at the end of each month for 2.25 years. Interest is 5% per annum compounded monthly. (a) What is the amount financed? (b) How much is the interest cost? (a) The amount firanced is $ (Round the foal answer to the nearest cent as needed. Round al intermediate vahues to six decinal places as needed) (b) The inserest is $ (Round the final answer to the nearest cent as needed. Round at intermediale values to six decimal places as needed.)