I Am Really Struggling With A Few Regression Assignments And I Have Been Trying

I am really struggling with a few regression assignments and I have been trying to watch all the videos that I can but I am still not any clearer. Would it be possible to help with step by step walk through with the data and questions below? I have another 3 assignments on regression and I am really worried that I am not going to understand. Thank you!

 

"Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!"