document.write( "Question 341471: How many cubic feet of cement are in a rectangular cement slab that is 3 inlches thick 8.5 inches long and 12 feet wide? \n" ); document.write( "
Algebra.Com's Answer #244567 by edjones(8007)\"\" \"About 
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3/12 * 8.5/12 * 12 = 306/144 = 2.125 cu.ft.
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