PLS CAN SOMEONE HELP ME! I don't understand this.

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.

At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k