I am really hung up on these, can anyone help?!

2. Suppose that the NASDAQ Composite index hit a level of 4,692 in February of 1991 it was at a level of 2,088. What was the annual average compound growth rate over the period?

The annual average compound growth rate over the period was ___%

6. Find the present value of the following mixed stream of cash flows (as of Year 0) using a discount rate of 14%. Assume the cash flows are received at the end of each year

Year Cash Flow Stream

1 1,000

2 3,000

3 4,000

7. You will receive a $80,000 inheritance in 9 years. You could invest that money today at 9% compounded semi-annually. What is the present value of your inheritance?

8. You have $500 in an account which pays 4.3% compounded annually. If you invest your money for 5 years, then how many dollars of interest will you earn by the end of the term?