Answer:
b
Step-by-step explanation:
 
        
             
        
        
        
The answer is 17/25. Hope this helps! :) I know how you feel! 
        
             
        
        
        
20 minutes
Because-
If he did ten more minutes then friday just do 30 - 10 whih 20 mins
        
             
        
        
        
It would be 4/12 which is equal to 1/3. 
The answer is 1/3
        
                    
             
        
        
        
Answer:
4. Answer is 19
5. Answer is 77
Step-by-step explanation:
65-(-12)
= 65+12
=77