Mrs. Pete wants the interior of her classroom to be repainted. On average, it costs $3.50 per square foot to paint a wall, and she has no more than $350 to spend. Model this scenario using a one-step inequality and let A be the unknown area. Which model can be used to find the largest area that can be repainted?

The inequality that represents this scenario is:

$3.50A \leq 350

To find the largest area that can be repainted within Mrs. Pete's budget, we need to find the maximum value of A that satisfies this inequality. This can be found by dividing both sides of the inequality by $3.50:

A \leq \frac{350}{3.50}
A \leq 100

Therefore, the largest area that can be repainted within Mrs. Pete's budget is 100 square feet.