-5,0 and-200 cannot represent the area of polygon
As 0 has no value and there are impossible to make a polygon with negative value
Answer:

Step-by-step explanation:
You can use these Cramer's formulas to solve for x and y:

where

So,

The answer is D because I did the math
180/15 = 12
12 stores sell shoes.
Answer:
-3367 1/9
Step-by-step explanation:
This is what calculators are for.
Perform the multiplication and division before the addition.
... = 10000/-9 -2256
... = -1111 1/9 -2256
... = -3367 1/9
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If you don't have a calculator, the Google and Bing search boxes can be relied upon to use the correct order of operations.