Answer is

$36,589-10 years

$117,804-20 years

$698,202- 40 years

Please explain how to get these numbers-

thank you in advance

6) Future value of an annuity. Starting at the end of the month, you plan to make monthly deposits of $200 into an index fund that you expect to earn 8%, on average, with monthly compounding. How much will this investment be worth in 10 years? 20 years? 40 years