pa help po?

Solve the following problem.

1. Jessica opened a saving account with php 800. if the annual rate what will the account balance be after 3 years

2. you are deposited php 3000.00 into an account paying 10% Compounded annually how much money will be in the account after 4 years ?

3. How much money Jenny need to deposit today at 8% annual compound annually to have £ 13 000 in the account after 2 years?