Answer:
10.6
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The ordered pair is 
Step-by-step explanation:

 
        
                    
             
        
        
        
If I were solving this equation, I would put x^2-20x+(100)=(10). Since this is in standard form, you could change this into vertex form by making the equation      y=(x-10)^2 -10.
        
             
        
        
        
You multiply 8 by 15 then again by 6 so the answer is 720