Yes because the greatest common factor (largest factor both numbers share) is three
        
             
        
        
        
Answer: you will get 45
Step-by-step explanation:
If you do 9x5=45 and 11x5=55
So the answer would be 45
 
        
             
        
        
        
The difference between the circumference of circle X and circumference of circle Y is 5π cm.
<h3>What is circumference of a circle?</h3>
This is the distance round a circle.
The circumference of circle X is calculated as follows;

The circumference of circle Y is calculated as follows;

The difference between the circumference of circle X and circumference of circle Y is calculated as follows;

Thus, the difference between the circumference of circle X and circumference of circle Y is 5π cm.
Learn more about circumference of  a circle here: brainly.com/question/9782777