Question

2. An algebra class has 12 students and 12 desks. For the sake of variety, students change the seating arrangement each day. How many days must pass before the class must repeat a seating arrangement?

__________ days must pass before a seating arrangement is repeated.

Suppose the desks are arranged in rows of 3. How many seating arrangements are there that put Larry, Moe, & Curly in the front seats?

There are ______ seating arrangements that put them in the front seats.

15.S={y∣y∈Nand103≤y<119}S={y∣y∈ℕand103≤y<119}

SS has ______ subsets.

SS has ______  proper subsets.

4. If the probability of a certain event is 53/91 , what are the odds against the event happening?
Write all answers as simplified fractions.

Answer 1