Answer:
mean:12
Step-by-step explanation:
 
        
             
        
        
        
If the 3 points are collinear, then the slopes of all line segments connecting the points are the same.
Thus, 
         -6 - (-8)         2
m = ------------- = -------- = -1/2
         -7 - (-3)         -4
Then the following must be true:
             4-(-6)          10
-1/2 = ------------ = ---------
             c - (-7)       c + 7
Cross multiplying, -(c+7) = 20, and c+7 = -20, so that c = -27
        
             
        
        
        
This is true . Solution , root , x and zero all are the same thing
        
                    
             
        
        
        
Answer:
3.2h+1.6
Step-by-step explanation:
3h-2(-0.1h-0.8)
3h+0.2h+1.6
3.2h+1.6
 
        
             
        
        
        
The equation is 
8x +7=125