Brody deposited $500 into an account that earns 4.2% interest compounded annually. He makes no additional deposits and no withdr
awals. Approximately how much interest will the account have earned after 7 years? A $167 B $420 C $542 D $665 I think the answer is D. But can someone tell me how to check my answer with work. I don't want to use a calculator.
