If $1,000 is invested in an account that pays 5% interest compounded annually an expression that represents the amount in the account at the end of five year

The formula for this is: A=P (1+r/n) ^ (nt)

A = amount in the account

P = amount you start with

r = rate it is compounded

t = time (in years)

n = number of times per year

Since you are looking for A, you can solve right away.

A = $1,000 (1+0.05) ^ (5)

A = $1276.28