It is equal. .21 ia the same as 21%
        
                    
             
        
        
        
Answer:
70
Step-by-step explanation:
We have the final part 4x/40 = 7. We can simplify this to x/10 = 7 by dividing the numerator and the denominator by 4. We then multiply both sides by 10 to get x = 70
 
        
             
        
        
        
(x^2)+4x-12=48
I Hope this is what you were looking for. If it isn't this just plug it in
x=6
 
        
             
        
        
        
392 / 500 double and take one decimal place to see percentage
52/500
56/500 e.g. 56*2 = 112 now take 1 decimal so it is 11.2%
now divide each by 20