How to:
a+b-mx=0
a+b=mx
(a+b)/x=m
        
             
        
        
        
If 19 out of 28 renters keep a pet, there are 
 renters who don't keep a pet.
Whenever you have a subset of some set, and you want to know which percentage of the set the subset represents, you simply have to compute

So, in your case, you're wondering what percentage of 28 does 9 represent. So, the formula becomes

 
        
             
        
        
        
Where’s the answer choices ??
        
                    
             
        
        
        
Answer: c
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x = 5/3
Step-by-step explanation:
-3x+5
-5= -3x
-5/-3 = 5/3