Here's an assignment I need help with for my Acoustics class. It is due on Sunday, so there's no rush. I tried to attach 5 short video clips that would have helped with the assignment, but the system

Here's an assignment I need help with for my Acoustics class. It is due on Sunday, so there's no rush. I tried to attach 5 short video clips that would have helped with the assignment, but the system or site did not allow it. For reference, I have attached the instructions (as well as some pictures) to help a little. 

I'm not looking for complex explanations; just a short but precise answer would do just fine. Thanks in advance for your help.