Constructing Math

The 400 square feet of built-up roofing weighs 5.5 pounds per square foot. ... I converted from inches to feet by dividing by 12. If I were going the other way, converting from feet to inches, I would have multiplied by 12. ... hectometer hm 100 dekameter dam 10 meter m 1 decimeter dm 0.1 centimeter cm 0.01 millimeter mm 0.001 micrometer µm 0 ... ................
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