From the question we can deduct that the temperature is proportional to the volume of the gas, set:
\(P=\frac{C}{V}\)
With P being pressure, V being the volume, and C being the constant of the gas.
A. Plug \(V=2\) and \(P=125\) into the equation:
\(125=\frac{C}{2}\)
\(C=250\)
Therefore the relationship between \(P\) and \(V\) is:
\(P=\frac{250}{V}\)
Plug \(P=325\) into the equation:
\(325=\frac{250}{V}\)
Multiply both sides of the equation by a factor of \(V\):
\(325V=250\)
Divide both sides by \(325\):
\(V=\frac{250}{325}=\frac{10}{13}\) (Unit Volume)
Done :D
B.
Plug \(V=10\) into the equation:
\(P=\frac{250}{10}=25\) (Unit Pressure)
Done :D x2