that equals 12!/(12-9)!
which equals (12 x 11 x 10 x 9 x8 x 7 x6 x5 x4 x 3 x 2) / (3 x 2)
which equals 12 x 11 x 10 x 9 x8 x 7 x6 x5 x4 = 79,833,600
9.4m questions
12.2m answers