A video store clerk wants to keep the titles on the main display in constant rotation. If he has 15 movies to?
September 27th, 2008
emy asked: A video store clerk wants to keep the titles on the main display in constant rotation. If he has 15 movies to display and room for 10 movies on the rack, how many ways can he arrange those 15 movies, 10 at a time? What type of formula do you need to use [...]