Help needed with the following

1. If you received $10,000 5 years back, what is its value today if the appropriate interest rate is 8% and interest is compounded monthly?
2. At what annual rate of return can you triple your money in 8 years if interest is compounded monthly?
3. At what annualrate of return can you quadruple (means 4 times) your money in 16 years, if interest is compounded quarterly?
4. How many periods will it take you to quadruple (means 4 times) your money at 7%, if interest is compounded semi-annually? how many years will it take?
5. How many periods will it take $500 to grow to$8,000 if you believe you can earn interest at the rate of 9% compounded monthly? how many years will it take?
6. What is the present value of $15,500 received in 10 years if interest of 1% is compounded monthly?
7. What is the present value of $22,000 received in 5 years if interest of 1% is compounded quarterly?