Permutations and Combinations

From 9 names on a ballot, 4 will be elected to attend a convention. How many committees?

How many different ways can 7 people finish 1st, 2nd, & 3rd in a race?

How many 3-letter codes can be made from A, B, C, D, E if no letter can be used more than once?

Kathy can choose 2 kittens from a litter of 5. How many possibiliites are there?

There are 10 students in a spelling bee. How many ways can they come in 1st and 2nd place?

A password consists of 2 letters and 4 numbers that are not repeated. How many can be made?

You choose 4 flavors out of 31 from Baskin Robbins for a sundae. How many choices are there?

How many ways can a king, queen, jester be selected from a group of 20 people?

How many different ways can 7 people finish in a race?

You want to choose 3 toppings out of 15 for your pizza. How many can you choose from?