can somone help me with this problem please

Use the table of discount factors to answer the following two questions. Remember, the discount factor is the present value of a dollar delivered at a future date. 4. What is the price or present value of a four-year zero coupon bond with a face value of $1000 ? 5. What is the price or present value of a four-year coupon bond with a face value of $1000 and a coupon rate of 5% paid annually at the end of each year? Hint: Write down the cash flow from the bond for each year, value it using the discount factors, and sum the pieces