Question 673609
Each team has 3 possibilities WIN, LOSE, TIE

Possible outcomes for the 1st team = 3 (WIN, LOSE, TIE)
Possible outcomes for the 2nd team = 3 (WIN, LOSE, TIE)
Possible outcomes for the 3rd team = 3 (WIN, LOSE, TIE)
Possible outcomes for the 4th team = 3 (WIN, LOSE, TIE)
Possible outcomes for the 5th team = 3 (WIN, LOSE, TIE)
Possible outcomes for the 6th team = 3 (WIN, LOSE, TIE)
Possible outcomes for the 7th team = 3 (WIN, LOSE, TIE)
Possible outcomes for the 8th team = 3 (WIN, LOSE, TIE)
Possible outcomes for the 9th team = 3 (WIN, LOSE, TIE)

 The point to note here is these outcomes are independent. i.e. the outcome of one team does not affect the other team's outcome.

SO, total no of possible outcomes = 3*3*3*3*3*3*3*3*3 = 3 to the power 9 = 19683