Question

Reposting.

Answer 1

For part a,
y < x 
y > -2x
Point B: (3,1) plugin x=3, y=1 y < x 1 < 3
which is true, so point B satisfies the first inequalityYou can graph the inequality y > 2x+5 and see which schools are in the shaded region

I'm sorry but I can't do B and C

But I hope this helps!