When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV**1.4=C where C is a...

When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV**1.4=C where C is a constant.Suppose that at a certain instant the volume is 450 cubic centimeters and the pressure is 95 kPa (kPa = kiloPascals) and is decreasing at a rate of 13 kPa/minute. At what rate in cubic centimeters per minute is the volume increasing at this instant?