Dieection: State if each scenario involves a permutation or a combination. Then find the number of possiblities

1.You ore setting the combination on a three-digit lock. You want to Use tne humben 123 but don't care what order they are in.

2 .A team of 17 sottball piayers needs to choose three playes to refill the water cooler

3 The student body of 10 students wants to elect a president, vice president, secretary. and treasurer.

4. There are 15 applicants for four jobs: Computer Programmer, Software Tester Manager, and Systems Engineer

5. There are 110 people af a meeting. They edch shake hands with everyone else. How mony handshakes were there?​