I think that can help for now
 
        
             
        
        
        
You have that situation with ANY base that's less than ' 1 '.
Examples:
(0.9)² = 0.81  (90% of the base)
(7/8)² = 0.765625  (87.5% of the base)
(1/2)² = 1/4  (50% of the base)
(0.1)² = 0.01  (10% of the base)
Each of these results is less than the base, and with 
higher positive powers, they keep getting smaller.
        
             
        
        
        
Answer is C:9
12^9/12^5 = 12^4
hope it helps
        
                    
             
        
        
        
Step-by-step explanation:
This is the answer.... Working shown
 
        
             
        
        
        
For Q3, you can subsitute x = 2 and y = 5 into the systems 
-5(2) + 5 = -5
so it's a solution for the first system
-4(2)+2(5) = 2
it's also a solution for the second system