please show work calculation

1. Johanna wants to start saving for a vacation and plans to put four annual deposits of $1200 each into an account earning 5 percent, compounded annually. How much will she have in her account in four years if she starts saving immediately and makes deposits at the beginning of each year?$ 5430.76

2. Val bought a car for $48,000, putting down $15,000 cash and financing the remainder. How much are his annual car payments if he financed the car for 5 years and paid an annual interest rate of 6 percent?$ 7834.08