-5<n-2<2
First you need to get n by itself, so add 2 to all 3 terms:
-5 +2 ≤ n-2+2 ≤ 2+2
Simplify:
-3 ≤ n ≤ 4
The less than or equal to signs (≤) mean the dots on the line graph are solid.
And n is between -3 and positive 4, the 3rd graph is the correct one.
