



 
Hi Dianna. 1 cubic yard = 1 (yard)^{3}. Since each yard = 3 feet, 1 cubic yard = 1 (3 feet)^{3 } = 27 feet^{3}. So a cubic yard is 27 cubic feet. The first price is $25 for 27 cubic feet, so that works out to $0.93 per cubic foot. Walmart's price is $3 for 2 cubic feet, so that works out to $1.50 per cubic foot. Clearly, by buying in larger quantities you get a better price. How much to buy depends on the depth you plan. Each inch of depth is 1/12 of a foot, so each inch of depth requires 376/12 = 31.33 cubic feet. Multiply the number of inches by 31.33 to get the number of cubic feet you will need to purchase. Hope this helps,  


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