Answer: Not sure what they are looking for answer wise, but diameter is the distance from the center of a circle to the edge of the circle.  It is half the radius.
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Answer:
A. (x,y) → (x-5,y-3)
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That's the answer 
 
        
             
        
        
        
Answer:
C.
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Answer: Honestly all the stuff we do in school will not be used in the real world
Step-by-step explanation: lowkey