Add cash flow diagrams

4- A local car dealer offers a customer a 3-year car loan of $15,000 using "add-on interest. 96 Money to pay for car $15,000 Two years' interest at 8%: 3 x 0.08 x 15,000 3,600 $18,600 18,600 36 monthly payments = $516.67 36 The first payment must be made in 30 days. What are the nominal and effective annual interest rates? 4- A local car dealer offers a customer a 3-year car loan of $15,000 using "add-on interest. 96 Money to pay for car $15,000 Two years' interest at 8%: 3 x 0.08 x 15,000 3,600 $18,600 18,600 36 monthly payments = $516.67 36 The first payment must be made in 30 days. What are the nominal and effective annual interest rates