If A=12251π cm², find c

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

Which value of c would make he following expression completely factored? 8x+cy

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm