1. Someone you know needs a loan and she is willing to pay you back $15,000 in exactly 8 years. If the appropriate discount rate is 4.5% compounded annually, how much would you be willing to loan her today? Round to the nearest dollar.

2. If you deposit $12,000 into an account paying 2.3% interest compounded monthly, how much interest will you earn after 7 years? Round to the nearest dollar.

3. You have $50,000 in an account which pays 2.5% compounded annually. How many additional dollars of interest would you have earned over 7 years if you had instead invested in an account earning 3.8% compounded quarterly? Round to the nearest dollar.

4. Suppose you are planning to deposit $4,000 in a bank account. You'd like your deposit to grow to $7,000 in 4 years. If interest in the account compounds weekly, what annual interest rate do you need? Answer in percentage and round to one decimal place (e.g., 5.43% --> 5.4).

5. A bank advertises an annual interest rate of 2.5% compounded monthly on their savings accounts. In percentage terms, what is the effective annual rate (EAR) on the loan? Round to two decimal places (e.g., 5.43% --> 5.43)