1. The problem asks how much money Lin has saved if she has saved a certain percentage of her goal of 20. 2. The formula to find the amount saved is: $$\text{Amount saved} = \frac{\text{Percentage}}{100} \times \text{Goal}$$ 3. We will calculate the amount saved for each percentage given. **a. 25%** $$\text{Amount saved} = \frac{25}{100} \times 20$$ $$= \frac{\cancel{25}}{\cancel{100}} \times 20 = 0.25 \times 20$$ $$= 5$$ Lin has saved 5. **b. 75%** $$\text{Amount saved} = \frac{75}{100} \times 20$$ $$= \frac{\cancel{75}}{\cancel{100}} \times 20 = 0.75 \times 20$$ $$= 15$$ Lin has saved 15. **c. 125%** $$\text{Amount saved} = \frac{125}{100} \times 20$$ $$= \frac{125}{100} \times 20 = 1.25 \times 20$$ $$= 25$$ Lin has saved 25, which is more than her goal. Final answers: - a. 5 - b. 15 - c. 25