please help me. I don't know anything about this. my 'teacher' did not even teach us this lesson before giving this task. I've been studying this for days but I just can't get it.

Give 3 examples of problems or situations in real life that involve permutations. In each example, 1. Explain the problem or situation 2. Solve the problem 3. Discuss how you can use these sample situations in your daily life, especially in formulating conclusions and /or making decisions