1) An amount of $1400 was invested for 71 months, maturing to $2177.36. What annually compounded rate was earned?

2) Determine the effective annual rate of interest equivalent to 5.4% compounded monthly.

3) Sean needs to decide how to invest his savings. He can choose between 3.95% compounded semi-annually, 3.92% compounded quarterly, or 3.90% compounded monthly. Which choice will maximize his return?

4) A loan of $14 400 is to be repaid in end-of-the-quarter payments of $600. How many payments are required to repay the loan at 10.5% compounded quarterly?

5) What is the size of deposits made at the end of each period that will accumulate to $67 200 after eight years at 6.5% compounded semi-annually?