A: which expression shows how many ways 7 people can be arranged on individual ferris wheel seats? assume clockwise vs. counterclockwise makes no difference because you can observe the ferris wheel from either side. b: evaluate the expression you chose in part a. select one answer choice for part a, and select one answer choice for part b. a: (7−1)! 2 b: 40,320 a: (7−1)! a: 7! b: 5040 b: 360 a: (7+1)!