Answer:
We show 1 to distinguish a vertex, but with laws of supplementary the answer is 2.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
D.  -1(3x + 1)(x+5) 
Step-by-step explanation:
 
        
                    
             
        
        
        
The multiples of 14 are 1,2,7,14
the multiples of 22 are 1,2,11,22
Therefore 2 is the GCF
        
             
        
        
        
 Answer:
No solution
 Explanation:
-4+19-7f = -15-7
cancel terms on both sides ( add 7f on both sides)
Calculate the sum
-4+19= -15 
-4+19=15
15 = -15
The statement 15 = -15 is false so there is no solution :)