please answer all

7. Your goal is to create a college fund for your child. Suppose you find a fund that offers an APR of 3.5% compounded monthly a) How much should you deposit monthly to accumulate $120,000 in 18 years? 18 points) b) How much would you have invested into this account at the end of 18 years? (4 points) c) How much profit would you have made? 14 points) d) How much would your balance after 18 years if you invested the same amount as in (b) all at once in the beginning and just watched it grow (without investing further)? [6 points)