You have a test tomorrow. Here are the review questions, in case you missed them: https://mrgrasley.wordpress.com/2015/09/22/mdm4u-permutations-review-2015-09-23/
And here are solutions to the review work.
DON’T TRICK YOURSELF.
Give every question a fair try before you check your solutions against mine. Don’t read my answers and think that it’s effective studying!
You know where I’ll be. Come and see me before school, during your spare in the morning, and/or at lunch in Room 256. Don’t wait if you’re having trouble!