Looking for the excel function for these

If you deposit $4,000 at the end of each of the next 20 years into an account paying 9.7 percent interest, how much money will you have in the account in 20 years? How much will you have if you make deposits for 40 years? $ Annual deposit Number of years Interest rate on annuity Number of years 4,000 20 9.7% 40 Complete the following analysis. Do not hard code values in your calculations. All answers should be positive. Future value for 20 years Future value for 40 years