2. (score for question 2: 5 of 5 points) you are making necklaces for your friends. you have 72 blue beads and 42 red beads. each friend will receive an identical necklace, and all beads must be used.
(a) what is the greatest number of friends who can receive a necklace? explain your reasoning.
(b) how many of each color bead will each friend receive on the necklace? explain your reasoning.