Find a formula for the described function. A rectangle has perimeter 8 m. Express the area A (in m2) of the rectangle as a function of the length, L, of one of its sides.
i know that
A(L)= 4l-l^2 m^2
but i dont know what the domain is

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? \ 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x