Answer:
[-4,2] or 
Step-by-step explanation:
Range is the range of the y-axis.
Although we see that the "line" ends at a specific point, it is neither the highest or lowest y-value.
Our lowest y value is -4, and because it is a line, it is not an open dot resulting in a [, instead of a (.
This same thing happens with highest y-value which happens to be 2.
This is interval notation.
Due to your question, you may be asking for this:

Answer:
D Z has the greatest measure
Step-by-step explanation:
-5 0 4
<----------------------------------------------------------------->
(-5) + 4 = -1 = 5 - 4 = 1
(But take the symbol of the bigger number, which is 5) (-)
Hope helps!-Aparri
Answer:
x = 30
Step-by-step explanation:
x + 2x + 3x = 180
<u>6x</u> = <u>180</u>
6 6
x = 30