Trying to help my younger cousin solve this, but I forgot how to do it

Why do interests rates on loans to be lower in a weak economy than in a strong one

Evaluate cos2θ for cosθ = square root of 3/2

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?