please solve and show work.

the title was Applications... the only information given

27. Suppose $15,000 is invested in a savings account paying 7% interest per year. Find the amount in the account after 3 years if the interest is compounded quarterly. 28. Find the amount when a principal of $8,300 is invested at a 7.5% annual rate of interest compounded continuously for eight years. Sabrina Gonzalez has a balloon payment of $50,000 due in 2 years. What is the present value of that amount if the money earns interest at 14% 29. Annually? 30. Continuously? 4