A dance instructor chose four of his 10 students to be on stage for a performance.If order does not matter, in how many different ways can the instructor choose the four students?

Four band members, Harry, Isabel, Jose, and Karen, are all boarding a bus to attend a concert. In each arrangement below, the first initial of each person’s name represents that person’s position as he or she boards the bus: first, second, third, and fourth.If we know that Karen boards the bus first, which shows the possible outcomes for this event?
Evaluate the expression.4! • 3!
A membership committee of three is formed from four eligible members. Let the eligible members be represented by A, B, C, and D. The possible outcomes include S = {ABC, ABD, ACD, BCD}.Which statements about the situation are true? Select three options.There are four ways to choose the committee.There are three ways to form the committee if person D must be on it.If seven members are eligible next year, then there will be fewer combinations.If persons B and C must be on the committee, there are two ways to form the committee.If persons A and C must be on the committee, then there is only one way to form the committee.
Set V is all the unique three-digit numbers using the digits 1, 2, 3, 4, and 5.Which set would be considered a subset of set V?
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