help(Permutations and Combinations)

[hybrid flume]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with:

+close

3. Feel free to nominate the person for helper of the week in #helper-nominations
4. Do not ping the mods, unless someone is breaking the rules.
5. If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[bleak rain]

Well, here you have 18 letters in your word and you want to know how many possible unordered groups of 5 letters are possible so here it’s just 18C5

I think

[naive temple]

^

for c, think about it this way

how many choices are there for your first letter? second letter? and just multiply them together