Choice A is the correct answer. Set up the income inequality.

1. Income Equation: Base + Commission = $2000 + 0.10s$
2. Target: At least $5000 $\rightarrow \geq 5000$
3. Inequality: $2000 + 0.10s \geq 5000$
4. Subtract 2000: $0.10s \geq 3000$
5. Divide by 0.10: $s \geq 30,000$

?�� Strategic Tip: Dividing by 0.10 is the same as multiplying by 10.

Choice B is incorrect because it likely divides by 1 instead of 0.10. Choice C is incorrect because it adds 2000 to 5000 instead of subtracting. Choice D is incorrect because it ignores the base salary.