The rectangle shown has a perimeter of 52cm and the given area. It's length is 6 more than three times it's width write down and solve a system of equations to find the rectangle ?

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?