help ive tried and it was wrong precalculus

Question

If 4000 dollars is invested in a bank account at an interest rate of 6 per cent per year,

Find the amount in the bank after 7 years if interest is compounded annually:   

Find the amount in the bank after 7 years if interest is compounded quarterly:   

Find the amount in the bank after 7 years if interest is compounded monthly:   

Finally, find the amount in the bank after 7 years if interest is compounded continuously:   

Answer 1

A(7) = 4000(1 + 0.06)⁷

A(7) = 4000(1 + 0.06/4)⁽⁴⁾⁽⁷⁾

A(7) = 4000(1 + 0.06/12)^(12)(7)

A(7) = 4000e^0.06(7)