1. 8 friends, including BFFs Alexis and Leah, want to seat at a single (big) restaurant table. How many ways are there to arrange them, knowing that Alexis and Leah must sit next to each other? Blank 1. Calculate the answer by read surrounding text.

[Hint: consider 2 cases, according to the positions of Alexis and Leah]

2. Kim has 5 different mystery novels and 7 different fantasy novels. If they wishes to select 4 novels to read on their upcoming business trip, in how many ways can this be done?

3. How many distinct anagrams (with or without meaning) of the word "OSSIRIAND" can be made?

4. How many 4-digit numbers are even?