A jar of peanut butter was $2.25 and now is $3.50. What is the percent of change on the jar of peanut butter? Make sure to type if it is an increase or decrease

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