Need help with my Algebra question – I’m studying for my class.

This is a Alg2 assignment. I have attached the pdf to complete. This assignment came with a very short video presentation. You DO NOT have access to the video, so I have include the transcript of the video to help you complete. It is pretty simple and will not require more than an hour or so of time. Thank you in advance for accurate information. Attached is a pdf of the transcript of the video, then the actual questions that need to be answered.