There would be
"five ways" to bring three DVD's. If you divide fifteen by three there would be five.

To prove your work:

Hope this helps!
Answer: y = 6
Explanation:
Find area of 1 square:
180/5 = 36
Find the side length of the square:
Sqrt 36 = 6
The screenshot below will give you the answer and the explanation
Hope I helped :)
Answer:
33
Step-by-step explanation: