3 yards @ 54'' wide
$1,650
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It depends on the density of the material.
A 9x9 foot slab 4 inches thick requires a minimum of 1 cubic yard. If you go to 6 inches thick you will need 1.5 cubic yards.
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
2000 pounds.
55
540 square feet
12.5 cubic feet. Assuming you meant 4 INCHES thick..
depends on how thick the material is . 2 lbs at most
2.15
30.81 cubic yards