A $10,000 loan is to be amortized with 12 equal quarterly payments over 3 The interest rate is r^(4) = 6%. Find the quarterly payment. Construct an amortization schedule. The Smiths buy a camp trailer and take out a $20,000 loan. The loan is amortized over 10 years with monthly payments at r(12) = 12%?. After 3 years, they could refinance their loan at r^(12) = 10%. provided that they pay a penalty equal to 3 months' interest on the outstanding balance. Should they refinance? Justify your answer. Consider a loan of $15,000 to be repaid over 5 years with a 5-payment annuity-immediate at effective rate of interest of 6% per year. Construct a sinking fund schedule for the loan