Bing and Monica Cherrie require a mortgage of $154,500 and can afford monthly payments of $2,450 on the mortgage Current interest rates are 3 percent compounded semiannually. (Use a Financial calculator to arrive at the answers, Do not round Intermediate calculations and round the final answer to 1 decimal places.) How long should the Cherries select to pay off the mortgage (the amortization periody? Amortization period years