It has to be b because none of the others are correct.
        
             
        
        
        
Answer:
7 units
Step-by-step explanation:

=7
 
        
                    
             
        
        
        
It would be HL=I !!!!!!!!!!!!!!!!!!!! 
hope this helps
        
             
        
        
        
Answer:
The slope is 4
Step-by-step explanation:
I think it's right
 
        
             
        
        
        
Answer:
I really don't know..but I can try with some guideline on it.