We start with

We can factor x at the numerator:

So, assuming  (otherwise the expression would make no sense) we can simplify it:
 (otherwise the expression would make no sense) we can simplify it:

This equation has no roots, so we can't simplify it any further.
 
        
             
        
        
        
Answer:
   21 kWh
Step-by-step explanation:
1. Subtract 25% from the original amount.
   25% of 28 kWh is ...
   0.25 × 28 kWh = 7.00 kWh
Subtracting this from 28 kWh, we find the usage after reduction to be ...
   28 kWh - 7 kWh = 21 kWh
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2. We know that if we reduce 100% of a quantity by 25%, then the resulting amount is (100 -25)% = 75% of the original. As a fraction, this is 75/100 = 3/4 of the original amount. Then the reduced usage is ...
   (3/4) × (28 kWh) = 3·(7·4)/4 kWh = 3·7 kWh = 21 kWh
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Mario must reduce his usage to 21 kWh or less.
 
        
             
        
        
        
Answer:
this is the define of measure of an angle 
Step-by-step explanation:
hope it help you 
 
        
                    
             
        
        
        
Answer:
A and B are the answers on Edge. 
Step-by-step explanation: