Answer:
4
Step-by-step explanation:
From the chioces give it would be 4
But it is actually 8

get rid of -2 by subtracting it from 21

Now you get your answer

Hope this helps! :)
I’m guessing it would be 21/24
Answer: B. A coordinate plane with points in quadrants II and IV.
Step-by-step explanation:
Let's take the point (-1,1) as an example
The point itself is in the second quadrant
the opposite of the point is (1,-1)
This point is in the fourth quadrant