Answer:

Step-by-step explanation:
Quadrant II is the top left cornered <em>square</em>, so this coordinate is the one you would pick.
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Answer:
508 sheets /4 shelters = 127 sheets per shelter.
Change in y over change in x is key
(4-1)/(5-6)=3/-1
13. -3
(9-4)/(2-0)=5/2
14. 5/2
(1-(-2))/(-6-4)=3/-10
15. -3/10