2/8, 2 Over 8 because all your doing is multiplying 1x2 and 4x2
        
             
        
        
        
Hello,
Step-by-step explanation:







 
        
             
        
        
        
Answer:
-15 
Step-by-step explanation: the only numbers that can be used under a 0 is negative and since its colder it goes down -15+0 is -15
 
        
                    
             
        
        
        
Denominator:

so excluded values are x =  -1 and x = 1.
Answer D.