A loan of $12,000 is repaid by payments of $595 at the end of every three months. Interest is 8% compounded quarterly. (a) How many payments are required to repay the debt? (b) What is the size of the final payment? (a) The number of payments is . (Round up to the nearest whole number.) (b) The size of the final payment is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as nooded.)