233 = 18 combinations.
3 items each in 3 categories gives 3*3*3 = 27 possible combinations.
11*3*3 = 99 combinations.
8
9
There are: 35C3 = 6545 combinations
233 = 18 combinations.
There are 6C3 = 20 such combinations.
There are 5C3 = 10 combinations.
3 items each in 3 categories gives 3*3*3 = 27 possible combinations.
11*3*3 = 99 combinations.
You could make 10*10*10*26*26*26 combinations, or 17576000 combinations.
There are 9C3 = 84 combinations.
8
9
There are 32C3 = 32*31*30/(3*2*1) = 4960 combinations. I do not have the inclination to list them all.
Well, honey, with 3 numbers to choose from (3, 6, 9), you can make 6 combinations because you can arrange them in any order. So, it's like a little math party with 6 different ways to mix and match those digits. Hope that clears things up for ya!