of the 15 letter passwords formed by mixing 6 letters (from A to Z, without repeats), 5 numbers (from 1 to 9, allowing repeats), and 4 symbols (from @, #, $, %, and *, allowing repeats), i select one at random

(b) Of the 15-letter passwords formed by mixing 6 letters (from A to Z, without repeats), 5 numbers (from 1 to 9, allowing repeats), and 4 symbols (from @, #, $, %, and *, allowing repeats), I select one at random. Determine: i. Prob (my password includes at most one vowel and ends with 9) ii. Prob (two of the five numbers appear together and the other three apart ... from each other and from the 2-number chunk)