there are 19 teams in the hockey league , and each team faces all the other teams 10 times each . how many games are played in the season ?
"the number of ways to choose two teams is 19 c 2 = 19 * 18 / 2 = 171 the total number of games in the season is 10 * 171 = 1710 . the answer is a ."
divide(multiply(multiply(19, subtract(19, const_1)), 10), const_2)