The way the game works is you are given three dice - one six-sided die, one ten-sided die and one twenty-sided die. It costs $1 to play the game and if you roll the three dice and get a total of exactly 21 you win $21 (which includes the dollar you wagered). If you do not get 21 exactly then you lose the $1 you wagered.
1. How many possible ways are there for rolling the three dice?
2. If you get a 1 on the six-sided die, how many ways can the dice total 21?
3. If you get a 6 on the six-sided die, how many ways can the dice total 21?