An Olympic final consists of two runners from each of four different countries. An ordered selection of three of the eight runners win the medals (gold, silver, and bronze). How many different possibilities are there if the medal winners are all from different countries?

You have four pairs of socks, one pair each of red, blue, white, and green. Each morning, you reach into the drawer and pick out two random socks. How many days could go by before you picked exactly the same two colors of socks again?

A landscaper has 8 different flowering plants. She needs to plant 4 of them in a row in agarden. How many different ways can 4 of the 8 plants be arranged in a row?

Motors Inc. manufactured 306 cars with automatic transmissions, 237 with power steering, and 62 with both of these options. How many cars were manufactured with at least one of the two options? The number of cars that were manufactured with at least one of the two options is