Boyle's & Charles's Laws

Drag the correct property into each blank (a word may be used more than once):
Boyle's law relates the 1($) of a gas inversely with the 2($) of that gas.
Charles's law relates the 3($) of a gas directly with the 4($) of that gas.

True or False: Temperatures used in gas-law calculations must be expressed in kelvins.

A gas has an initial pressure of 1.445 atm and a volume of 1.009 L. What is its new pressure if the volume becomes 0.556 L (temperature and amount constant)?

A gas has an initial pressure of 4.33 atm and a volume of 5.88 L. What is its new volume if the pressure becomes 0.506 atm (temperature and amount constant)?

A gas has an initial volume of 67.5 mL at 315 K. What is its new volume at 244 K (pressure and amount constant)?

A gas has an initial volume of 685 mL at 29°C. What is its new temperature if the volume becomes 1.006 L (pressure and amount constant)?