it takes a particular machine 6 minutes to manufacture a flag pole, while it takes another machine 9 minutes to manufacture the same flag pole. If both machines start at the same time, after how many minutes will the machines next begin manufacturing a flag pole at the same time again?

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