5. (p. 199-201) Four different boxes of Lucky Charms cereal, three different boxes of Frosted Flakes cereal, two different boxes of Raisin Bran cereal and two different boxes of Chex cereal are to be arranged on a shelf in the pantry. (a) In how many ordered sequences can the boxes of cereal be arranged? (b) If the boxes of each kind of cereal must be kept together, how many ordered sequences are possible?.