It should be D, I did the math :)
Answer:
P
Step-by-step explanation:
(-8/3)/(-2/6)
negative times negative equals positive
simplify -2/6 to -1/3 AND FLIP THE -1/3 TO -3/1
-8/3*-3/1
cancel out the 3s and make them 1s
cancel out the negatives and make them positive
8/1 = 8
<h2><u><em>
8</em></u></h2>
To subtract vectors, you simply have to subtract correspondent coordinates.
So, if you have

the subtraction is simply

So, in your case, we have

Just add the numbers then subtract from 12