Order does not matter so use "n choose k" formula is used to find number of unique combinations.
c=n!/(k!(n-k)!) where n is total possible choices and k is number of selections.
c=4!/(2!(4-2)!)
c=4!/(2!2!)
c=24/(2*2)
c=24/4
c=6
So there are 6 different two topping options when there are four different toppings to choose from.
I did this and the was 104. hope this helps :)
Answer: your an ARMY right? :) I am too!
Step-by-step explanation: btw I think the answer is A :D
Answer:
2
Step-by-step explanation:all of them can be divided by 2 and it is the smallest number.
4 out of 10 because the amount of prime numbers from 1- 10 is
2, 3, 5, and 7.
Hope this helps!
