Answer:
B
Step-by-step explanation:

(x^2)+4x-12=48
I Hope this is what you were looking for. If it isn't this just plug it in
x=6
Just list the factors of 24. Those are the possible numbers of students that can be in each row.
1,2,3,4,6,8,12,24 are the possible row sizes.
<span> -y - 5 + 3y + 2
= 2y - 3
-----------------------</span>
The standard form would be x+3y=-27