document.write( "Question 124707: A concrete driveway measures 18 yards by 4 yards. The driveway will be 0.5 yards thick. (a) How many cubic yards of concrete will be needed? (b) How much will it cost if concrete is $3.50 per cubic yard? \r
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Algebra.Com's Answer #91450 by checkley71(8403)\"\" \"About 
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18*4*.5=36 yd^3 amount of concrete needed.
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