Answer:
6.75
Step-by-step explanation:
 
        
             
        
        
        
24% = 24/100 = 12/50 = 6/25 
24% is 6/25 fraction of world's energy.
        
             
        
        
        
Answer:
2 x 40 is = 80 
Step-by-step explanation:
i hope that helps 
 
        
             
        
        
        
Answer:
53
Step-by-step explanation:
Total amount = Given to his brother + Amount left
20 + 33 = 53