A mother opened an investment account for her son on the day he was born, investing $700. Each year on his birthday, she deposits $700, making the last deposit on his 16th birthday. If the account paid a return rate of 5.6% compounded annually, how much is in the account at the end of the day on the son's 16th birthday? of each The mother's deposits form an period. Therefore, the formula because the deposits are made at the should be used