Answer:
D.
Step-by-step explanation:
You want to find the points on each side. Because it is greater than or equal to -4, there will be a solid circle on the -4. Since D is the only answer with a solid circle on -4, that should be the answer.
their is just a black screen
x=6
-7x= -42
x= -42/-7
Which problem exactly?
You need to factor out the greatest perfect square factor possible.