The cement subcontractor orders materials based on the total volume of the slab. The industry standard for patios and walkways is 4 to 5 in. of thickness. Because the slab will be topped with bricks,...

The cement subcontractor orders materials based on the total volume of the slab. The industry standard for patios and walkways is 4 to 5 in. of thickness. Because the slab will be topped with bricks, the contractor decides on a thickness of
 in. Find the volume of the slab in cubic inches. Convert this to cubic feet, rounding up to the next whole cubic foot. Convert this to cubic yards. Round up to the next whole cubic yard if necessary. (See Exercise 71 in Section 7.4.)