1 2 3 4 5 6 7 8 9 10 11 12 13 | Netflix, Blu-ray disc rental, cost per disc break down 9.99/1 = 9.99 14.99/2 = 7.495 19.99/3 = 6.663333 26.99/4 = 6.7475 33.99/5 = 6.798 39.99/6 = 6.665 45.99/7 = 6.57 52.99/8 = 6.62375 The best plan: 7 discs The only plans that make sense: 1,2,3,7 |