11+(19+6)= (11+19)+6 so it's the associative property
        
                    
             
        
        
        
1. 7
2. 4
3. 6
Hope this helped! :)
        
             
        
        
        
So to answer this question all you need is the definition of a reflection 
A reflection in my explanation is a flip of the figure to be on the opposite side NOT changing the shape but only flipping the coordinates
        
             
        
        
        
Answer:
$42.58
Step-by-step explanation:
You would multiply the price of the item (45.79) by the percentage as a decimal (0.07) and subtract the product.
in this case:
45.79x0.07 = 3.205 (rounded 3.21)
45.79-3.21 = 42.58
 
        
             
        
        
        
868 is about 870, and 28 is about 30, so your expression would be 870 divided by 30 which would be 29 and the actual answer is 31, so your estimate would be close to your actual answer.