<span>3^5 * 6^-6 / 3^3 * 6^-4
= 3^2 6^-2
= 3^2 / 6^2
= 9/36
=1/4
answer
</span><span>C.
1/4</span>
        
             
        
        
        
we are given 


we can multiply -1 on both sides of second equation 


we can see that 
both equations becomes same
so, they are coincident............Answer
 
        
                    
             
        
        
        
1600<2570-125.5x<2000  subtract 2570 from all terms...
-970<-125.5x<-570  divide all terms by -125.5 (and reverse signs because of division by a negative!)
 
7.73>x>4.54  and x is months since January, and since months can only be integers...
x=[5,7]
So January + 5, 6, and 7 respectively are the three months that satisfy the equation...
June, July, and August.
        
                    
             
        
        
        
His score changed by 110 points.
Explanation: 3*30=90 & 200-90=110 points
        
             
        
        
        
Answer:
What are you asking?
Step-by-step explanation: