Answer:
B.) Associative Property of Addition 
Step-by-step explanation:
This is because none of the numbers change places the only things that move are the parenthesis which correspond with the associative property. 
 
        
             
        
        
        
Answer:
0.872665
Step-by-step explanation:
 
        
                    
             
        
        
        
the original price is "x", or 100%.
but we know that if we reduce "x" by 20%, namely 100% - 20% = 80%, the 80% of "x" is really £50, what is "x" or the 100% anyway?

 
        
             
        
        
        
Answer:
<h2>no solution</h2>
Step-by-step explanation:

 
        
             
        
        
        
Answer:
try 00.1
Step-by-step explanation: