There are n! (n factorial) ways that n people can stand in line. So six people can stand in line in: 1*2*3*4*5*6 = 720 different ways
I make it 136 ways.
If the people are always facing forward? 24 ways.
There are 19 ways to do this.
120 ways.120 ways.120 ways.120 ways.
128
There are 5040 ways.
5040
There are n! (n factorial) ways that n people can stand in line. So six people can stand in line in: 1*2*3*4*5*6 = 720 different ways
36
5! (5 factorial), which is 1 x 2 x 3 x 4 x 5.
7
I make it 136 ways.
20*19*18*17*16 = 1860480 ways.
If the people are always facing forward? 24 ways.
Not sure what a strait line is! Five people can stand in a straight line, with Jessie third in 24 ways if you ignore left-to-right and right-to-left "reflections".
This is a question of permutation. There are only 3 ways. A-B-C, B-C-A, C-A-B