1. **State the problem:** The total bill for a lawnmower and 15 drawer pulls is within a $400 budget. The lawnmower costs 325. We need to find the maximum cost of each drawer pull. 2. **Define variables:** Let $x$ be the cost of one drawer pull. 3. **Write the inequality:** The total cost is the cost of the lawnmower plus the cost of 15 drawer pulls, which must be less than or equal to 400. $$325 + 15x \leq 400$$ 4. **Isolate $x$:** Subtract 325 from both sides. $$15x \leq 400 - 325$$ $$15x \leq 75$$ 5. **Divide both sides by 15:** $$\cancel{15}x \leq \frac{75}{\cancel{15}}$$ $$x \leq 5$$ 6. **Interpretation:** The maximum cost of each drawer pull is 5. **Final answer:** $$\boxed{5}$$