The area of the surface of the trampoline is equal to twice its perimeter. find the dimensions of the trampoline.
the length is 4x
the width is (x+6)

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

Can someone tell me if this is perpendicular? !