Answer: -20/3
Step-by-step explanation:
 
        
                    
             
        
        
        
24) 9/19
27 is a bit tricky for me.. sorry ):
30) On the 7th it will be 1/120 
33) C
        
             
        
        
        
Well first you have to know what i is. i is the sqrt of -1 so try doing 3+5(sqrt-1)/1+sqrt-1. I don't know how to solve it though sorry
        
             
        
        
        
There are 39 left handed students at Toms school
        
             
        
        
        
Answer is highlighted in brown. Hope this helps.