1.There are 43 cars that start in every Nascar Sprint Cup race. How many ways can they place in the top 5 at each race?

2.There are 102 students in John's freshman seminar class at SUNY Oneonta. The professor tells her students she will be assigning a project in which the students will work in pairs and that she will be selecting the pairs of students. How many pairs of students are possible?

Permutations and Combinations