The correct answer is the last number line because with an inequality, the "equal to" sign below the "<" or ">" means the circle should be filled in. The line is traveling in a negative direction because the inequality says that n is less than -1.
The last one as it is equal to negative one, so it is included on the number line. Then it has to be less and equal to negative one which means that it can be any number lower than -1, which represents the arrow showing the infinite possibilities. Hope this helped!
