Helen is considering a car loan for $21400. The monthly installment payments would be based on a 9% APR (simple interest) for a five-year maturity. What is the amount of interest she would pay in the first month? For a $4300, 3-year 6 percent add-on interest installment loan, calculate the approximate APR. Elizabeth has accumulated $55000 in student loans which are payable over 12 years at an annual interest rate of 5.0%. If the lender requires month-end payments, what will Elizabeth's monthly payments be?