Final answer:
The system of inequalities that best models the relationship between the number of mustaches, m, and party hats, p, is a) m + p ≥ 15, 3m + 2p ≤ 30.
Step-by-step explanation:
The system of inequalities that best models the relationship between the number of mustaches, m, and party hats, p, is a) m + p ≥ 15, 3m + 2p ≤ 30.
Let's break it down:
The inequality m + p ≥ 15 represents the condition that Aaron must purchase at least 15 mustaches and party hats combined.
And the inequality 3m + 2p ≤ 30 reflects the fact that Aaron's spending on mustaches and party hats should not exceed $30.