Hey guys these are very useful videos that will help you understand the upcoming lessons regarding gas laws.
https://www.youtube.com/watch?v=UKUmYU6Q1cA
https://www.youtube.com/watch?v=_wxhSanQyIs

Chemistry 7.4d Combined Gas Law

Here are the Gas Laws notes and worksheets:





Video on how to rearrange the variables in the combined gas law equation to isolate the unknown variable: http://www.youtube.com/watch?v=V89vHYQKLJo

Video on the combined gas laws and practice problems: https://www.youtube.com/watch?v=bftkRnTcFj8

Video on understanding conversion factors: https://www.youtube.com/watch?v=HZ9weUkSdoY