Answer:
C) (5,-4)
Step-by-step explanation:
Two points of the leg (-7 , 5) (-7 , -4)
So if the third vertex is (5 , -4), then the segment of (-7 , -4) and (5 , -4) will perpendicular to the leg.
I believe your answer would be 8 dollars and 75 cents. I don't know for sure.
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