Alicia Martin’s savings account has a principal of $1,200. It earns 6% interest. How much simple interest will she earn after 9 months?

Alicia Martin’s savings account has a principal of $1,200. It earns 6% interest compounded quarterly. How much compound interest will she earn after 9 months?

Lena Castro’s bank computes 4 percent simple interest on a daily basis. She has $1,000 in the account. Ten days later, she makes a deposit of $600. 15 days later, she withdraws $400 and the balance earns interest for 6 days. What is the amount in the account at the end of the month?

The Rosario’s opened a savings account with a deposit of $2,000 on January 1. The account pays interest at 4.75% compounded semi-annually. On July 1 they deposited another $2,000. What amount will they have in their account on July 1?

Write the amounts in work form:

$65.29

What is the total deposit for $324.75, 15 pennies, 8 nickels, 5 dimes and 3 quarters?