Boyles law problem - need a little help?

Atmospheric pressure on the peak of Mt. Everest can be as low as 150mm Hg, which is why climbers need to bring oxygen tanks for the last part of the climb. If the climbers carry 10.0 liter tanks with an internal gas pressure of 3.04 x 10^4mm Hg. What will be the volume of the gas when it is released from the tanks?