In how many ways can you arrange 6 Mathematics books, 3 Science books, and 4 English books on a shelf such that books of the same subject are kept together? In a panel of 4 members, they will be selected from S men and $ women. In how many ways can 2 of the panelists be men and the other two be women? A bucket contains the following marbles: 4 red, 3 blue, 4 green, and 3 yellow, making a total of 14 marbles. Each marble is labeled with a number so they can be distinguished. How many sets of 4 are there in which at least 2 are red?