A sales agent earns a 3% commission. How much does she earn on sales of ₱150,000?
Correct answer: C. ₱4,500
1% of ₱150,000 is ₱1,500, so 3% is ₱4,500. Commission questions are simply "percent of" questions: rate × amount. Multiply directly: 0.03 × 150,000 = 4,500.
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