Yes because 84+45 is 129 and 3(28+15) is 129
        
                    
             
        
        
        
First you take 15/10 and see that you can take 5 out of the top and bottom, so it would become 3/2. Now you have 2 3/2.   2 goes into 3 once with 1 remainder so 3/2= 1 1/2
So then you take the original 2 and add it to 1 1/2. The answer is now 3 1/2
        
                    
             
        
        
        
17
it's 17+(-7)=10
i hope that answers your problem
        
                    
             
        
        
        
Answer:
you can dived or multiplied 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
I also
 need points sorry :(
Step-by-step explanation: