Well, i'm just going to take a stab at this:
The answer out of:
> It is (18,9) ,
> It is (9, 18)
I believe both are correct as those are both plausible coordinates (although I may be wrong)
Line R: 2x + 2y = 18 (x + y = 9)
Line M: x + y = 9
There are infinite many solutions as they are the same line.
        
             
        
        
        
Answer:
10x - 5y = 15
-5y = -10x + 15
y = 2x - 3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
look for the missing angle
 
        
                    
             
        
        
        
Answer:
k ≥2
Step-by-step explanation:
k+ 1/3≥7/3
Subtract 1/3 from each side
k+ 1/3-1/3≥7/3-1/3
k ≥6/3
k ≥2
 
        
             
        
        
        
Answer:
x=55°
Step-by-step explanation:
Add angles together and set to 180°. Solve for x.