Answer:
it shows commutative property
 
        
             
        
        
        
Answer:
1/3 * (8 + 4)
Step-by-step explanation:
Expression which represents 1/3 tines the sum of 8 and 4
Expressing mathematically,
Sum of 8 and 4 is written as (8 + 4)
1/3 of the sum is expressed as ; 1/3 x (8 + 4)
Hence, 
1/3 * (8 + 4)
1/3 * 12
= 4
Expression is 1/3 * (8 + 4)
Result = 4 
 
        
             
        
        
        
In your change cup you have 28 coins.  All of which are nickels and quarters.  Together they add up to $4.  How many coins do you have of each. 
        
             
        
        
        
Answer:
100
Step-by-step explanation:
hope this helped :D
 
        
                    
             
        
        
        
Answer:
The answer is 73.0 or just 73