Im pretty sure the Correct answer is D 
I Could be Wrong Tho.
 
        
                    
             
        
        
        
Answer:
n = 36
Step-by-step explanation:
The opposite sides of a parallelogram are congruent , that is
AB = DC , substitute values
 n - 5 =
 n - 5 =  n + 7 ( multiply through by 3 to clear the fractions )
 n + 7 ( multiply through by 3 to clear the fractions )
2n - 15 = n + 21 ( subtract n from both sides )
n - 15 = 21 ( add 15 to both sides )
n = 36
 
        
                    
             
        
        
        
Answer: N+5 ÷ 4 = 17 
(Hope this helps!)
        
             
        
        
        
Answer:
Step 1 (IM AM NOT SURE NOT MY FAULT IF ITS WRONG)
Step-by-step explanation: