Final answer:
To model John's fundraiser, the system of inequalities is 10x + 8y ≥ 200 (to represent the sales goal) and y > 12 (as he must sell more than 12 hats).
Step-by-step explanation:
To write a system of inequalities that models John's fundraiser situation, we need to consider the price of the items he sells and the goals he needs to meet.
Let x represent the number of shirts he sells and y represent the number of hats he sells.
The shirt costs $10, and the hat costs $8. He needs to raise at least $200, so we can write our first inequality:
10x + 8y ≥ 200
Since John needs to sell more than 12 hats, our second inequality can be written as:
y > 12
The system of inequalities that models the situation is: