Given A = {1, 2, 5, 7, 10}, B = {1, 3, 4, 8, 9, 10}, and C = {3, 5, 6, 8, 10}, find A – B. O {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} O {3, 4, 8, 9} ○ {2, 5, 7} O {1, 10}

In how many different ways can two letters be chosen from the letters A, B, C, D, E, F, and G? (The order of the two letters is not important.)

How many permutations of the letters W, X, Y, and Z are possible?

Dance Committee A school dance committee is to consist of 2 freshmen, 3 sophomores, 4 juniors, and 5 seniors. If 6 freshmen, 8 sophomores, 12 juniors, and 10 seniors are eligible to be on the committee, in how many ways can the committee be chosen?