Solve for x, need help!

How many terms does the polynomial x^2 y^2 have

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

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters