1. You deposit $3209 in a bank account that earns 2.1% interest. How much interest will you earn in one year? 2. You borrow $200 from your brother with the understanding you will pay him 7% monthly interest. If you have no payments, how much will you owe him after six months? 3. You deposit $400 in an account that earns 1.34% simple interest. How much interest will you have earned after five months? 4. Determine the amount you owe on an $800 cell phone bill if you pay it three months late, and the company charges 13% monthly simple interest. 5. A $4,000 investment is worth $4184 after two years. Find the simple annual interest rate. 6. Calculate the maturity value of a simple interest 10- month loan $6600 if the interest rate is 1.75%