Twigg: In how many ways can 5 people sit in a car that holds 5 passengers? Use Permutation and plese tell me how you got it.
5 seats, 5 persons.
first person has the choice of one of the 5 seats.
second person has the choice of one of 4 seats.
..
..
last person has the choice of exactly one seat.
5*4*3*2*1 = 5!
factorial( 5 )
+3144 
