Wendy takes out a loan for 60,000 with 35 quarterly payments. For the first 15 payments, Wendy will pay only the interest due at the end of each quarter. For the remaining payments, Wendy will pay K at the end of each quarter. Suppose that the annual effective interest rate on the loan is 5.5%. Calculate (a) The total of all Wendys payments for this loan. (b) The total interest paid by Wendy on the loan.