Answer:
20 cubic inches
Step-by-step explanation:
We can use the function,[tex]\bf V= \dfrac{18000}{p}[/tex] and find the volume of the gas when the pressure of the gas is given.
p = 900 pounds
[tex]\sf V =\dfrac{18000}{900}\\\\\\\boxed{\bf V = 20 \ in^3}[/tex]