Please help me with this question

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

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)

32a³b² 8ab² simplify the following expression.