You have decided to buy a used car. The dealer has offered you two options: (FV of $1, PV of $1, FVA of $1, and PVA of $1) (Use the appropriate factor(s) from the tables provided.)

1. Pay $660 per month for 25 months and an additional $10,000 at the end of 25 months. The dealer is charging an annual interest rate of 24%.
2. Make a one-time payment of $18,980, due when you purchase the car.

1-a. Determine how much cash the dealer would charge in option (a). (Round your final answer to nearest whole dollar.)