21: The factors of 21 are 1,3,7,21
Answer: The answer is 3
Step-by-step explanation:
To find the slope u turn it into a shape it could make such as in this case u are able to make a box like this. For such as u can use this picture to get a better understand but hope this helps :)
The answer to your question is 210 combinations are possible :)
I am not sure is you are supposed to solve or rewrite but for solving its this picture, tell me if its rewriting the problem and ill give you that as well!