You invest $100 in a savings account with interest compounded annually at 10%. a. How much money

Question:

You invest $100 in a savings account with interest compounded annually at 10%.
a. How much money does the account have after one year?
b. How much money does the account have after five years?
c. How much money does the account have after x years?
d. How many years does it take until your savings more than double in size?