Need Help!!

Directions: Show all work, and answer each question that is asked. Explanations should be given in complete sentences. All graphs should be drawn accurately on this sheet, and be fully labeled.

Phillip wants to have $12,000 in 8 years, so he will place money into a savings account that pays 3.5% interest compounded weekly. How much should Phillip invest now to have $12,000 in 8 years?