1. **State the problem:** Bryan earns a commission of 3\frac{1}{2}\% (which is 3.5\%) on every item he sells. He sold items worth P150,000. We need to find his commission amount. 2. **Formula used:** Commission = (Commission rate) \times (Total sales) 3. **Convert percentage to decimal:** 3\frac{1}{2}\% = 3.5\% = \frac{3.5}{100} = 0.035 4. **Calculate commission:** $$\text{Commission} = 0.035 \times 150000$$ 5. **Perform multiplication:** $$\text{Commission} = 5250$$ 6. **Answer:** Bryan's commission is 5250.