a. What is the present value of $136 given in year 5 at an interest rate of 6% compounded quarterly?
b. What is the future value of $678.90 in year 6 at an interest rate of 7% compounded continuously?
c. What is the interest rate of $100 given in year 3.25 where the value today is $67.8?
d. What is the number of years it takes for an investment to reach $200, starting from $50 at an interest rate of 10%?