The table lists recommended amounts of food to order for 23 party guests. Nathan and Sydney are hosting a graduation party for
40 guests. They know there will also be guests stopping by who may
have come from other parties. For ordering purposes, they will count
each of these "drop-in" guests as half a guest. How much of each food
item should Nathan and Sydney order for a graduation party with 35
drop-in guests?

Nathan and Sydney should order how many
pieces of chicken?