According to Boyle's Law, if the temperature of a gas stays constant, when
the volume increases, the pressure

Answer:
We conclude that when the volume increases, the pressure decrease if the temperature of gas stays constant.
Explanation:
According to Boyle's Law, there exists an inverse relationship between Pressure and Volume such that
P ∝ (1/V)
P = k/V
It means the when the volume increases, the pressure decrease if the temperature of gas stays constant.
Thus, we conclude that when the volume increases, the pressure decrease if the temperature of gas stays constant.