1. **State the problem:** Find the value of $f(3)$ given $f(x) = \sqrt{x} + 1 + 5$. 2. **Formula and rules:** The function is $f(x) = \sqrt{x} + 1 + 5$. To find $f(3)$, substitute $x=3$ into the function. 3. **Substitute and simplify:** $$f(3) = \sqrt{3} + 1 + 5$$ 4. **Calculate the square root:** Since $\sqrt{3} \approx 1.732$, $$f(3) \approx 1.732 + 1 + 5 = 7.732$$ 5. **Choose the closest answer:** Among the options (1) 9, (2) 7, (3) 3, (4) 10, the closest is 7. --- 1. **State the problem:** Find the relative frequency of people buying pizza and water from the concession stand sales table. 2. **Formula and rules:** Relative frequency = $\frac{\text{Number of pizza and water buyers}}{\text{Total number of buyers}}$ 3. **Identify values:** Number of pizza and water buyers = 58 Total number of buyers = 400 4. **Calculate relative frequency:** $$\frac{58}{400} = 0.145$$ 5. **Choose the correct answer:** The relative frequency is 0.145, which corresponds to option (4).