A 600 mL can of gas is at a pressure of 30.0 kPa. If the can is run over by a garbage truck and flattened to a volume of 20.0 mL, what will be the final
pressure inside the can?

Do u have the n? or maybe the m?

Those are different gas lawshere is a brief description of themcharles's law states that volume and temperature are directly proportional to each other as long as pressure is held constant.  boyle's law asserts that pressure and volume are inversely proportional to each other at fixed temperature.gay-lussac's law introduces a direct proportionality between temperature and pressure as long as it is at a constant volume.    source: