Calculating Present Values of future cash flows.

I) Use Excel to perform the following calculations. Label each input and the output of your calculations. Highlight your final answer using the yellow highlighter on the top right menu bar. Assume for each part that the interest rate is 8% per year.
(1) What is the present value of $8000 to be received in five years?
(2) What is the present value of $8000 to be received in ten years? Why does this amount fall as the number of years increases? Why doesn't it fall in half as the number of years doubles?
(3) You are considering an investment which returns $100 in year 1, $100 in year 2, $100 in year 3, and $1,100 in year 4. What is the present value of this investment? What is the relationship between the present value and the price you would pay?
(4) How much is a share of preferred stock worth if it pays an annual dividend of $3 per share forever?
(5) You deposit $5,000 in a bank CD which matures in five years. What amount of money should you have when the CD matures?
(6) You have a brand new daughter in your house. You estimate she will require $250,000 to attend a small, private college in the southwest. She will enroll in 18 years. How much money do you need to save each year to meet this goal?
(7) In 1987, the population of Maricopa County was 1.3 million people. Twenty years later, the population has increased to 3.6 million people. What is the annual rate of increase?
(8) You win the lottery, which advertises a jackpot of $1 million. However, you learn that the $1 million is to be paid in 20 equal annual installments over the next 20 years. If you want an immediate payout, you must settle for ½ the jackpot amount, or $500,000. Which settlement is most valuable to you today?