Answer:
-6/4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
C
 
        
             
        
        
        
I hope this helps you 
m (I)= m (P)
3x+4=72-x
4x=68
x= 17
        
             
        
        
        
Answer:
MN = 71
Step-by-step explanation:
You first gotta know the value of x by putting both equations in line!
4x + 19 = 6x - 7
4(13) + 19 = 6(13) - 7
52 + 19 = 78 - 7
71 = 71 
<u>Answer:</u> x = 13
Then we already have the length of MN!
<u>Answer:</u> MN = 71 
 
        
             
        
        
        
Answer:
Perpendicular 
Step-by-step explanation:
x=2 and x=y would intersect on a graph.