Hey There!
your win/lose ratio is 5/6 and you have 10 on your first one 5×2=10 so 6×2=12
the other one you have 18 so 6×3=18 so, 5×3=15 thus these being your answers.
Hope This Helps!!!
        
                    
             
        
        
        
8*5=40
2/5= 16/40
3/8= 15/40
1 16/40-15/40= 1 1/40
1 1/40 is the final answer. 
I hope this helps!
~kaikers
        
             
        
        
        
Answer:
21
Step-by-step explanation:
 you plug in 5 for a and 6 for b and solve. 
 
        
                    
             
        
        
        
Pythagoras & his colleagues