one hour 55 min 
you just need to subtract bout to get the answer
 
        
             
        
        
        
There are 360 degrees so divide 360 by 20 and get 18 degrees
        
                    
             
        
        
        
Answer:
<-7,3> and 157 degrees
got it right :) hope this helped
 
        
                    
             
        
        
        
Answer:
I only know one way and its x = 7
Step-by-step explanation:
20 = 5( x -3 )
 20/5 = x- 3
4 = x - 3
4 + 3 = x
7 = x