Answer:
See below
Explanation:
See the attachment.
D, R, C, and N stand for Drinks, Rolls, Cheese, and Neapolitan.
Pack is the number of these items in 1 meal.
Need is the number of those items needed for 100 meals.
Have is the number in stock. Note the Items/Unit in the last column. This is the number of those individual items contained in one unit (e.g., 25 slices of cheese per packet).
Buy is the difference between Need and Have, in individual items. Units is the number needed to purchase, with the values for C and N adjusted for the number of items per unit. Thus, 35 units of Cheese will provide the individual slices needed: (35 units)(8 slices/unit) = 280 slices.
The Units column is the answer to the question. We need:
Item Units
D 55
R 120
C 35
N 10