The answer is 47 is 25% of 188.
        
                    
             
        
        
        
Its 0.343 because it cannot be expressed as a fraction or whole number
        
             
        
        
        
 In the attachement, there is what I came up with so far. I think that finding 'a' is non-trivial, if possible at all.
 - the area of a circle
 - the area of a circle
 - the area of a circular segment
 - the area of a circular segment
 
        
             
        
        
        
Answer:
8
Step-by-step explanation:
if we take the 2 that is in the R.H.S and put it in L.H.S 
it becomes 16÷2=8
 
        
             
        
        
        
There’s no picture, please post one