please help with these 2

If you need $100,000 in 15 years and you can earn 10% on your investments, what amount of money do you need to invest today to have what you need in 10 years? 1) $215,892 2) $23,939 3) $32,569 4) $14,903 Question 4 (2 points) Your investment account has $200,000 in it. How much will you have in 20 years if you can earn 10% annually? 1) $672,749 2) $1,345,500 3) $756,215 4) $14,864