To calculate 15% of $20.50:

\[
15\% \text{ of } 20.50 = \frac{15}{100} \times 20.50 = 0.15 \times 20.50 = 3.075
\]

So, 15% of $20.50 is **$3.08** (rounded to two decimal places).

Would you like more details on percentage calculations or have any questions?

Here are 5 related questions for practice:
1. What is 10% of $45.60?
2. How do you calculate 25% of $50?
3. If you have $100, what is 15% of it?
4. What is the total if you add 15% tax to $20.50?
5. How would you find 20% of $120?

**Tip:** When calculating percentages, remember that multiplying by 0.01 is equivalent to finding 1%.

Learn how to calculate 15% of $20.50 with a simple step-by-step guide. This problem demonstrates how to use percentage formulas and basic arithmetic to solve real-world problems. Perfect for students in Grades 5-7.

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