The answer for part B is in the third picture, But I need help solving the answer for part B with the formulas provided. I don't know which one to use or how to solve.

4. You have decided to buy a car, the price of the car is $18,000. The car dealer presents you with two choices: (A) Purchase the car for cash and receive $2000 instant cash rebate your out of pocket expense is $16,000 today. (B) Purchase the car for $18,000 with zero percent interest 36-month loan with monthly payments. Market interest rate is 4%. Which option above is cheaper? How much do you save? Future and Present Value 1. FV = C(1+r)? 2. PV = (1+r)T 3. FV = PV(1 + r)T D 1 FVT 4. r = - 1 PV In 5. T= In(1+r) Annuity pmt 1. PV = PV:r 2. pmt = 1 (1+r) 7 3. T = [In(pmt)-In(pmt-PV-r)] In(1+r) pmt 4. FV = [(1 + r)? 1] r Annuity Due pmt 5. PV = 6. FV = pmt [(1 + r) 1](1+r) EAR & APR - 1 1. EAR = (1 + 3)" - 2. APR = m[(1 + EAR) - 1) Annuity Value 1 Calculator Have you been preparing for retirement by making regular deposits into an account? This calculator can tell you the present value of your savings. First enter the amount of the payment that you've been making, the account's interest rate, the number of years you've been making these deposits, and the Dayment interval. Press CALCULATE and you'll see the present value of the money you've been squirrelling away. Calculator Rates 500 Payment amount ($): 4 Annual interest rate (APR %) View today's rates: 3 Number of years: Payment interval: Monthly Reset Calculate $16,935.38. Present value