Your challenge . . . Part 1: Your math class is celebrating McNugget Monday and needs to order 531 Chicken McNuggets. If they are sold in packages of 4, 6, 9 and 20, determine TWO possible ways that 531 Chicken McNuggets can be ordered. Be sure to verify your answer.
Part 2: If McDonalds stop making the 6 pack, is there a largest number of Chicken McNuggets that cannot be purchased? If so, what is the number? If not, explain why not?