Algebra-1

Question Analysis
This question involves setting up a system of linear equations to compare the costs of two items. The main focus is on translating word problems into algebraic equations and solving for unknown variables.

Key Concept Explanation
A system of equations allows us to solve for multiple unknowns by relating them through separate equations. Here, we use the substitution or elimination method.

Step-by-Step Solution
1. Let p = cost of one pencil, e = cost of one eraser.
2. From Sarah: 3p + 2e = 5.<...