Kevin has a rabbit, a ferret, a gerbil and a turtle he feeds them in a different order each day. In how many different orders can Kevin feed his pets?

1. Rabbit, ferret, gerbil, turtle

2. Rabbit, gerbil, turtle, ferret

3. Rabbit, turtle, ferret, gerbil

4. Rabbit, ferret, turtle, gerbil

5. Rabbit, gerbil, ferret, turtle

6. Rabbit, turtle, gerbil, ferret

Those 6 combinations times 4 animals mean that there should be 24 different orders Kevin can feed his pets.

Or easier way: 4 animals • # of days. BTW, wouldn't the answer be 28 days, because there are 7 days in a week.