Final answer:
The subject of this question is Mathematics, specifically optimization. The student is asked to find the minimum cost per pound of the raw materials given the cost per pound of each material.
Step-by-step explanation:
The subject of this question is Mathematics, specifically optimization. The student is given the cost per pound of each raw material for a minimization problem. The problem asks the student to determine the Rs from the known quantities and find the minimum cost per pound of the raw materials.