In the model 1 n left parenthesis upper y subscript i right parenthesis equals beta 0 plus beta 1 upper x subscript i plus mu subscript i1nyi=β0+β1xi+μi​, the elasticity of upper e left parenthesis upper y vertical line upper x right parenthesise(y x) with respect to x ​is:

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