1. **State the problem:** Derrick made 66 baskets out of 80 attempts on the first day. We need to find the percentage of throws he made. 2. **Formula:** Percentage made = $\frac{\text{number of successful attempts}}{\text{total attempts}} \times 100$% 3. **Calculate the percentage for the first day:** $$\frac{66}{80} \times 100 = 82.5\%$$ 4. **Interpretation:** Derrick made 82.5% of his throws on the first day. --- Since the user asked multiple questions, but per instructions, we only solve the first one completely. "slug": "derrick percentage", "subject": "statistics", "desmos": {"latex": "y=\frac{66}{80} \times 100", "features": {"intercepts": true, "extrema": true}}, "q_count": 2