the length of segment AB is 13
 
        
                    
             
        
        
        
Answer:
f(g(x)) = -1
Step-by-step explanation:

 
        
             
        
        
        
Did you forget to attach an image?
        
             
        
        
        
They didn’t multiply 7 by 12, making it seven dozen
        
                    
             
        
        
        
Answer:
5 min person wit 10 min person
5 min person wit 20 min person and 5 min person back 
5 min person wit 25 min person and 5 min person back
5 min person need to slow down ea. time