interest problem. please help thanks.

2. Compute the present value of the following estimated future expenses. Interest is 5% per year. Year 0 1 2 3 Estimated Expenses 100 150 200 250 3. Suppose Bill made a deposit of $2000 each year for 10 years. Then for the next 5 years, Bill did not make any deposits. If the bank pays 8% interest, how much would be in the account at the end of 15 years