*please show spreadsheet formulas*

3. You are saving for retirement. Today is your 49th birthday, and you decide, starting on your 50th birthday and on every birthday up to and including your 65th birthday that you will deposit increasing amounts into your savings account starting with $500 (16 deposits). a. Calculate the future value of what you will have available at your 65th birthday if the interest rate was 5% and you increase your deposit by 10% every year. b. Calculate the future value of what you will have available at your 65th birthday if the interest rate was 10% and you increase your deposit by 5% every year. c. Calculate the future value of what you will have available at your 65th birthday if you did not increase your payment but the interest rate was 12%