if anyone knows how to do this please help!

Kym plans to deposit $200 in an account at the end of each month for the next seven (7) years so she can take a trip. a. If Kym's opportunity cost is 9 percent compounded monthly, how much will she have in the account in seven years? Do not round intermediate calculations. Round your answer to the nearest cent. 5 b. Hew much will be in the account if the deposits are made at the beginning of each month? Do not round intermediate calculations. Round your answer to the nearest cent. 5