1. **State the problem:** Solve the compound inequality $$9f - 2 > 16$$ or $$\frac{f + 20}{2} \leq 10$$.
2. **Solve the first inequality:**
$$9f - 2 > 16$$
Add 2 to both sides:
$$9f - \cancel{2} + \cancel{2} > 16 + 2$$
$$9f > 18$$
Divide both sides by 9:
$$\frac{9f}{\cancel{9}} > \frac{18}{\cancel{9}}$$
$$f > 2$$
3. **Solve the second inequality:**
$$\frac{f + 20}{2} \leq 10$$
Multiply both sides by 2:
$$\cancel{2} \times \frac{f + 20}{\cancel{2}} \leq 10 \times 2$$
$$f + 20 \leq 20$$
Subtract 20 from both sides:
$$f + \cancel{20} - \cancel{20} \leq 20 - 20$$
$$f \leq 0$$
4. **Combine the solutions:**
The compound inequality uses "or," so the solution is all values of $f$ such that
$$f > 2 \quad \text{or} \quad f \leq 0$$.
5. **Interpretation:**
This means $f$ can be any number greater than 2 or any number less than or equal to 0.
**Final answer:**
$$f > 2 \quad \text{or} \quad f \leq 0$$
Compound Inequality B870Ef
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