Me with math , they are number lines.

The answer of this problem is A

X + 12 < 7

x < 7 - 12

x < -5

so the answer is C. you have to be careful with these questions. when the inequality signs are < or > you have the line as a dotted dot and when the inequality signs are ≤ or ≥ you have the line as a solid dot.

hope this helps, God bless!

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