In the problems A-F, You multiply each of the numbers by itself.  Like 9²=9×9=81
3³=3×3×3=27     6³=6×6×6=216 and so on for the other problems
G-I  is 36=6²  100=10² and so on the cube is the same except you multiply the number three times by itself.  I hope this helped a bit. Just ask if you still don't understand.
 
        
             
        
        
        
Answer:
1626.24
Step-by-step explanation:
You need to take the sample(2541) and divide it by the percentage so you would do 2541 x .64 =1626.24
 
        
             
        
        
        
Your answer is 36 times 2
        
                    
             
        
        
        
C because it's using the distributive property. It's breaking it down into sections.