Answer:
The answer is 144 m 2, hope this helps!!!:)
-4n-8=-12n+8
-4n+12n=8+8
collect the like terms
8n=8+8 then you add 8+8
8n=16 divide both sides by 8
n=2
We need to see the quadrilateral to answer
She can make 48 displays with one picture of each
4
2.5 -5 that should be it i believe