A student wants to buy pencils and erasers. Pencils cost 0.5...

Question Analysis
This question tests the student's ability to convert a real-life scenario into a system of inequalities. The key is to identify the variables, constraints, and the appropriate inequalities.

Key Concept Explanation
The problem involves setting up a system of inequalities based on the given constraints. The student must understand how to translate the verbal description into mathematical inequalities.

Step-by-step Solution
1. Identify the variables: for the number of pencils and for the number of erasers.
2. Write the inequality for the total cost: .
3. Write the inequality for the minimum number of pencils: .
4. Write the non-negativity constraints: and .
5. Combine all the inequalities to form the system:

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Algebra-1

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