physical science
posted by Josh .
If the absolute pressure of a gas is 550.280 kPa, its gage pressure is
A. 101.325 KPa
B. 277.280 KPa
C. 448.955 KPa

physical science 
DrBob222
Here is a good discussio of different types of pressure gauges. Absolute pressure = gauge pressure plus atmospheric pressure.
http://en.wikipedia.org/wiki/Pressure_measurement
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