Mean is the average 
So the first mean is 11 
The second one is 14.7 so round to 15
15-11 is 4. Hope that is correct
        
                    
             
        
        
        
1/2X+4=X-4
1/2X+8=X
8=1/2X
16=X
(Pick one of the equations )
y=1/2X+4
y=(1/2)(16)+4
y=12
point: (16,12)
        
             
        
        
        
I dont know if you know this, but there are 3 different 3's. So how can we figure out the question if we don't know which one is underlined?
        
             
        
        
        
Answer:SORRY:(
I do not really get the question so i do not know 
Step-by-step explanation: