Rory is staying in a cabin on a hill 300 feet above sea level swalked down the hill to the water edge equation of her average change and elevation overtime is e= 300-10 T, where T is time in minutes since .

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