Answer:
A linear equation has the greatest x power at 1. 
If you see an equation with only x (no x^2 or x^3 or stuff like that), you will know that it is linear. 
 
        
             
        
        
        
X should be 7 after doing all the calculation.
        
             
        
        
        
Answer:
12
Step-by-step explanation:
 
        
             
        
        
        
I think it’s 17% i might be wrong