maths
posted by Anonymous .
One type of lubricating oil weighs approximately 52 pounds per cubic foot, or 7 pounds per gallon. A 42gallon barrel will hold approximately how many cubic feet of such oil?

Ugghh, time to go metric.
42 gallons weigh 7(42) or 294 pounds
each cubic foot weighs 52 pounds
so the number of cubic feet = 294/52 = 5.654 ft^3
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