Answer:

Step-by-step explanation:

Simplified becomes;

Simplifying further gives; 
 
        
             
        
        
        
Yes because 84+45 is 129 and 3(28+15) is 129
        
                    
             
        
        
        
Answer:

Step-by-step explanation:

I hope I helped you^_^
 
        
             
        
        
        
Well if it’s volume just multiply all the numbers together so 8x5= 40x3=120 so the answer would be 120
        
                    
             
        
        
        
3,4?? 3+4=7 and they are right after the other ome