Since the length is 10 in. You must multiply it by 

 and then multiply by 

. The reason for this is because if you divide ten by 5 it will be 2, then if you divide 2 by 2 it will be 1.
 
        
        
        
Answer: a is equal to b 
Step-by-step explanation:
 
        
                    
             
        
        
        
63     5*10=50  50+13=63  that is the answer  63