At the beginning of the school year, Bradley bought a new box of 120 crayons. At the end of the year, only 10% of the crayons are still sharp. How many of Bradley's crayons are
still sharp?

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