The three gas laws are: Boyle's law, Charles' law, and Gay-Lussac's law.
Boyle's Law: the ideal gas law where at a constant temperature, the volume of an ideal gas is inversely proportional to its pressure
Charle's law: is an ideal gas law where at constant pressure, the volume of an ideal gas is directly proportional to its temperature
Gay-Lussac's law: is an ideal gas law which states that at constant volume, the pressure of an ideal gas is directly proportional to its temperature