If you don't feel like answering all the questions can you at least provide the equations or formulas to solving them?

3. What is the annual interest rate that would cause $200 to grow to $289 in 8 years?

4. What is the future value of a 6-year, $203 ordinary annuity if the annual interest rate is 5%?

5. What is the PV of a 6 year, $289 annuity due if the annual interest rate is 5%?

6. What is the value of a perpetuity that makes a payment of $155 per year? Assume the current interest rate is 4%.

7. What is the PV of a 6 year, $870 ordinary annuity if the annual interest rate is 5%?

8. What is the PV of 1,570 to be received in 5 years if the interest rate is 3%, annual compounding?