Answer:
Given that,
$4000 is placed in an account that pays 13% interest compounded each year.
a) Find the amount in the account at the end of 1 year.
we know that,
Amount after n years under compound interest rate r%,
Put n=1, we get
Amount in the account at the end of 1 year will be $4,520.
b) Find the amount in the account at the end of 2 years
Put n=2, we get
Amount in the account at the end of 2 years is $5,107.6