Please help with the problem attached.

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?