The length of a rectangle is 2 units shorter than one-fifth of the width, x.Which expression represents the perimeter of the rectangle?

perimeter = 2L+2wfrom the problem L = 1/5w-2so perimeter = 2(1/5w-2) +2w= 2/5w-4 +2w=12/5w-4
without seeing your choices it should be similar to this