Step-by-step explanation: 
Question number 1 The part is 23 and the whole is 35 and the percent is 66%.
Question number 2 is The part is 20 and the whole is 32 and the percent is 62.5%.
 Question number 3 is 41 is 82% of 50.
Question number 4 is 3 is 6%of 18.
Question number 5 is 14 is 28% of 50.
 
        
                    
             
        
        
        
Answer:
a = 4/27 - b/54
Step-by-step explanation:
27a+1/2b=4
Subtract 1/2 b from each side
27a+1/2b - 1/2 b=4-1/2 b
27a = 4 - 1/2 b
Divide each side by 27
27a/27 = 4/27 - 1/2 b/27
a = 4/27 - b/54
 
        
                    
             
        
        
        
 732,178 + 167 = 732,345
732,345 - 542,137 = 190,208
 
        
             
        
        
        
Step-by-step explanation:
All is explained in the photo