What happens to a volume of a gas if the temperature is increased

This law states that when the temperature and mass of a gas sample are held constant, the pressure of the gas and its volume have an inverse relationship. So as the pressure increases, the volume of the gas decreases. As the pressure decreases, the volume increases.

The volume of gas will increase if temperature is increased, unless it is in an enclosed container, then only the pressure will increase

Adozen is 1221/12 = 1.751.75 x 12 = 21therefore, 1.75 is the answer.

Idon't see the pic?