Answer: 
In 3 hours Henry can write 5 pages. So, In 1 hour Henry can write pages. Now, In 8 hours Henry can write pages. In 8 hours Henry can write 13.3 pages.
Step-by-step explanation:
 
        
             
        
        
        
Hey there! 
I'd say your answer would most likely be 
Option C
Because you can multiply the 

 by 

 (
numerator and 
denominator by 

 ) to get the fraction 


Good luck on your assignment and enjoy your day! 
~
