Alright so I got A=4, B=5 and C=9
   A B C          
+ A C B
----------
   C B A
   459
+ 495
--------
   954
        
             
        
        
        
Answer:
3x+2x=5x but 4 can't add to 3x and 2x
 
        
             
        
        
        
The answer would be 7-x=x
        
                    
             
        
        
        
Answer:
52.2
Step-by-step explanation:
Light reflects off a mirror at the same angle it hits it at (as shown in the image).  Since both triangles are right triangles, we can say they are similar by AA similarity.
Since they're similar, we can write a proportion.
HT / TV = JS / SV
Plugging in values:
5.8 / 4 = JS / 36
JS = 52.2
The wall is 52.2 feet tall.