Stan Loll bought a used car for $9,500. The used car dealer offered him a four-year add-on interest loan at 7.8% interest, with an APR of 8.0%. The loan requires a 10% down payment. (a) Find the monthly payment. (Round your answer to the nearest cent.) $ (b) Verify the APR. (Round your answer to two decimal places.) . % Verifies; this is within the tolerance of the Truth in Lending Act. Doesn't verify; the advertised APR is incorrect