In a lottery daily game, a player picks four numbers from 0 to 9 (without repetition). How many different choices does the player have a) If order matters   ?  b) If order does not matter   ?

14 people try out for a basketball team, how many different ways are there to select 5 players if each one of them is assigned to a specific position?

Using a standard deck of 52​ cards, how many 6​-card hands contain 4 kings and 2 queens?

Consider a popular ramen stall. Before the shop opens, there are 20people waiting in front of the restaurant   The ramen shop only serve 10 bowls a day. The shop owner pick only 10 from20 people and kick the rest out. How many combinations of people who getsto eat are there? (Order doesn’t matter)

How many different ways can a race with 5 runners be completed? (Assume there is no tie.)Your answer is

At a birthday party 34 guests are in attendance and 4 of them are randomly chosen to each receive a $25 gift card. How many ways can the cards be awarded?