Answer:
2 1/3 cups
Explanation:
The total number of cups of mixed nuts purchased is ...
(8 bags)·(3 1/2 cups/bag) = 8·3.5 cups = 28 cups
When those are shared 12 ways, each share is ...
(28 cups)/(12 shares) = (28/12) cups/share = 2 1/3 cups/share
Each share is 2 1/3 cups.