It depends on the density of the substance
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Concrete is a mixture of cement , sand, gravel and water. A cubic yard of concrete is 3' x 3' x 3' . That's 3x3=9x3=27 . 27 cubic feet = 1 cubic yard . So it's 27 feet divided by 3 inches equals 108 sq ft!
She will weigh 160000 pound-weight.
225 Pounds. (:
170 lbs
22 POUNDS