vshelton5620 vshelton5620 11-07-2017 Mathematics contestada The area of a rectangular slab of concrete is square feet. if it is 2x feet wide, what is the length, in feet? a. 2x – 1 b. 2x + 1 c. 2x – x d. 2x + xthe area of a rectangular slab of concrete is square feet. if it is 2x feet wide, what is the length, in feet? a. 2x – 1 b. 2x + 1 c. 2x – x d. 2x + x