Question

A code is formed using four of these letters: A, B, I, K, N, O, and T. (Note that the order of the letters in the code matters; for example, ABIK is a different code from BAIK.) The size of the sample space is . The probability that the first three letters of the four-letter code are vowels is .

Answer 1

Take me the brayniest.i hope it was helpful

Answer 2

1. my good guest if you have Plato the first one is 840

2. last one I am not sure but closes one I found  is 1/40