Step-by-step explanation:
y for the last one i dunno about the other 2 cause i cant see there drop down menus
 
        
                    
             
        
        
        
The answer should be number two
        
             
        
        
        
Answer: i can't
Step-by-step explanation: what b 
there's no picture attached 
does b have any value?
put a picture and i'll edit my answer
 
        
             
        
        
        
There were 7 cows before. All you have to do is subtract 13 from 6, which gives you 7. Do you need anymore help??