please also post with answer the formual used to solve if possible, thanks.

10. What would be the value of a savings account started with $56,000, earning 5.5 percent (compounded annually) after 8 years? 11. What would be the value of a savings account started with $3,300, earning 2.5 percent (compounded annually) after 10 years? (For questions 13-16). How much would you have to invest today to receive 12. $25,000 in 8 years at 9 percent compounded semiannually 13. $35,000 in 12 years at 10 percent compounded quarterly