It is d bexause every 6 is moved to the left for every one and it isnt abexause if you add 6 it would instwad go 6 12 18 24 and so on and its no c because if you move it to the right the # would decrease and obviously not b because if you subtract 0 every time it would stay as the same number
        
                    
             
        
        
        
Answer:
4x-4/x^2
Step-by-step explanation:
So we can first write out the equation.
It would be:
8/2x-4/x^2
First we can get a common denominator:
8/2x*x^2/x^2=8x^2/2x^3
and
4/x^2*2x/2x=8x/2x^3
Now we have
8x^2/2x^3-8x/2x^3
or
8x^2-8x/2x^3
We can divide everything by x
8x-8/2x^2
divide everything by 2
4x-4/x^2
 
        
             
        
        
        
Answer:
The common denominator is 100 because they dont have a number lower so 20*5 is 100 and 25*4 gives you 100
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The answer is the 1st one. 
Step-by-step explanation:
Hope it helps! :)