Susan’s grandparents want to pay for Susan’s first year of college.

a.) They deposited $10,000 into an account that pays 6.5% interest compounded monthly. What will the account be worth in 18 years?

b.) Calculate what the account will be worth if compounded continuously?

c.) How much should they invest now in an account compounded weekly at 6.5% in order to have $45,000 in 18 years?