Combinations = n! / (n - r)! r!

In this case:
n = 4
r = 3
Combinations = 4! /(4-3)! 3! = 24/(1)(6) = 24/6 = 4
Answer:
4 arrangements
Connections Academy? I got you covered. The correct and final answer is 600.
9 5/12 I think I’m not hundred percent
<span>14.3 years
Hope that helps! (:</span>