Charles Johnson deposited $4,400 in a savings account earning 6 percent interest compounded quarterly. If he makes no other deposits or withdrawals, how much will his money earn in 2 years?

On January 4, Janelle Ruskinoff deposited $2,192.06 in a savings account that pays 5.5 percent interest compounded daily. How much will her money earn in 24 days?

Tak Murakami has a savings account at city savings bank. The account that pays 5.5% interest compounded daily. On February 2, the amount in his account was $580. How much will be in the account in 40 days?