Give an example of fractions you would compare by finding common denominator

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

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