Each toss of a quarter will produce either a head or a tail. Let A = {Q, T} denote the set of outcomes. Find A³, n(A³), and explain what A³ represents.

Draw a labeled graph that represents the following scenario:

Three sisters, Rachel, Lily, and Jenn, each regularly call their mother Agnes, though Agnes only calls Lily. Jenn will not call Lily, though Lily continues to call Jenn. Rachel and Jenn will call each other, as will Rachel and Lily.