Answer:
The can do so in 24 different orders.
Step-by-step explanation:
The number of arranjments of n elements, that is, in how many orders can n elements be organied is:
[tex]A_{n} = n![/tex]
In this problem, we have:
4 cities, which means that n = 4. So
[tex]A_{4} = 4! = 24[/tex]
The can do so in 24 different orders.
