The correct answer you would be looking for would be 0 because it is equal to anything. 
Hope this helps :) 
Please mark me as brainliest!!!
 
        
             
        
        
        
I think it’s 30 not gonna lie I’m gonna get somebody
Let’s see if there’s anyone!!!!!!!!!!!!
A.
        
             
        
        
        
Answer:
9. This is because you have to add 13 to -4, which gives you positive 9. Hope this helped! 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
18/60-12/60= 4 miles
just my guess
 
        
             
        
        
        
Step-by-step explanation:  For - 3 1/2 you would place between the -4 and -3 in the middle 
The other one I don't know because I can't see the denominator but if you tell me I could