Answer:
Bottom Left Choice
Step-by-step explanation:
If you look at the points, they are traveling up and to the right. So is the line in the graph. Also, the line in the graph is closer to more dots than the others.
 
        
                    
             
        
        
        
Subtract 12x from 84x = 72x
        
                    
             
        
        
        
The answer will be option 2. 10^4.
 
        
                    
             
        
        
        
Width = x
length = 3x + 4
x + x + 3x + 4 + 3x + 4 = 60
add
8x + 8 = 60
subtract
8x = 52
x = 6.5 
width = 6.5
length = 23.5
        
             
        
        
        
The ones with ✓ signs are irrational the rest are rational. note this is not generally true but it is for this particular set