SAT math questions help

[Rij]

So I’m struggling with these SAT questions. It would be very helpful if someone could explain how to get to the solution and explain the solution to these problems. Thank you in advance!

 

[tkhunny]

Those are really big pictures. Don't we have an upload limit? Do you have the "Express, Written Permission" of KD College Prep? I went ahead and deleted the images for you so you don't get arrested.

Please, only one question at a time.

For the first, what are the conditions for having "more than one solution"?