Mrs. Ricco has five brown-eyed and two blue-eyed brunettes in her fifth-grade class. She also has six blue-eyed and three brown-eyed blondes. A child is selected at random. (a) What is the probability that the child is a brown-eyed brunette? (b) What is the probability that the child has brown eyes or is a brunette? (c) What is the probability that the child has brown eyes given that he or she is a brunette