Is this 2 questions or is it just one whole question?
        
                    
             
        
        
        
15:3 is the only equivalent ratio to 20:4.
        
             
        
        
        
Answer:
The missing angle I believe is 25%.
Step-by-step explanation:
180-130=50
Divide 50 by 2 and it equals 25. 25 degrees for each angles.
 
        
                    
             
        
        
        
Answer:
oh so easy 4 my answer is so easy 
 
        
                    
             
        
        
        
Answer:Go on a graph calolator
Step-by-step explanation:
calul