please help me solve this question completely and show all work. thank you

10. To help her get started Andrea's old boss Mr. Reynolds gives her $2100. Her friends, River and Simon, also give her $4000 as a graduation gift. Finally she receives a signing bonus of 10% of her base salary from her new job. Rather than spend the money Andrea decides to invest it to help save for a down payment for a house. Blue Sun Banking currently has two 7-year investment options. The first is a CD with an APR of 3%, compounded weekly. The second is a mutual fund that has an APR of 3.5%, compounded semiannually. Which option is a better choice for Andrea and why? If Andrea chooses your option, how much will she have for a down payment at the end of the 7-years