Any help would be great

Arectangular exercise mat has a perimeter of 36 feet the length of the mat is twich the width writeand solve an equation to determine the length in feet. of the mat then find the area in square feet of the mart

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?