the store where you bought new home furnishings offers you two alternative payment plans. the first plan requires a $4,000 immediate up-front payment. the second plan requires you to make monthly payments of $137.41, payable at the end of each month for 3 years. what nominal annual interest rate is built into the monthly payment plan? (hint: find the periodic interest rate first, i.e. monthly interest rate, then find the nominal interest rate.)