Is this problem is about solving for h? If it is, here is the answer:
 
        
        
        
Its either centimeters or inches.
I prefer centimeters
        
             
        
        
        
Answer: I know that the answer is 47.
Step-by-step explanation: add up all the angles to get 180 degrees.
 
        
                    
             
        
        
        
Answer:
(2,5)
Step-by-step explanation:
 
        
             
        
        
        
The answer is C 
Hope this helped