1. The problem asks: What is 55% of 20? 2. To find a percentage of a number, use the formula: $$\text{Percentage of a number} = \left(\frac{\text{percentage}}{100}\right) \times \text{number}$$ 3. Substitute the given values: $$= \left(\frac{55}{100}\right) \times 20$$ 4. Simplify the fraction and multiply: $$= \frac{55}{100} \times 20$$ 5. Cancel common factors: $$= \cancel{\frac{55}{\cancel{100}}} \times \cancel{20}$$ More explicitly: $$= \frac{55}{100} \times 20 = \frac{55}{\cancel{100}} \times \cancel{20} = \frac{55}{5} = 11$$ 6. Therefore, 55% of 20 is 11.