The area, a, of a trapezoid is calculated using the formula a= 1\2(b+c)h, where h is the height of the trapezoid and b and c are the base of the trapezoid. rearrange the formula to solve for h

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