Answer:
20160
Step-by-step explanation:
315*64 = 20160
 
        
                    
             
        
        
        
X-4=-11 
move -4 to the other side
to get X by itself
sign changes from -4 to +4
X-4+4= -11+4
X= -11+4
Answer:
X= -7
  
        
             
        
        
        
Answer:
The slope is  .
.
Step-by-step explanation:
The equation is conveniently in slope-intercept form. 

m - slope
b - y-intercept 
-2/3 is in m's spot, so it is the slope of the equation. 

Hope this helps. 
 
        
                    
             
        
        
        
136mm?? Isn't it 68 x 2 because Y-K and V-Y are the same, so 68 x 2=136? I don't know