Question 1) $8,000 invested for 7 years at 8 percent compounded annually. (show the work)

Question 2) Solving for i, at what annual interest rate would the following have to be invested?$300 to grow to $422.10 in 7 years? Provide Your Answer below: (Show your work)

Question 3) What is the present value of $300 to be received in 5 years from now discounted back to the present at 5%? Provide Your Answer below: (Show your work)

Question 4) What is the PV of $70 a year for 3 years discounted back to the present at 3%? Provide Your Answer below: (Show your work)