Final answer:
The subject of this question is Mathematics and the grade level is Middle School. The recipe makes 30 portions of glazed beets.
Step-by-step explanation:
The subject of this question is Mathematics because it involves calculations and measurements related to a recipe. The question asks for the number of portions the recipe makes.
To find the number of portions, we are given that the recipe makes thirty 5 1/2 ounce portions of glazed beets. Therefore, the recipe makes 30 portions.