Algebra-1

Question Analysis
This question tests the student's ability to calculate the unit price, which is a fundamental concept in ratios and rates.

Key Concept Explanation
The unit rate is the ratio of one quantity to another, expressed as the amount of one quantity per unit of another. In this case, it is the price per apple.

Step-by-step Solution
1. Identify the quantities: Total cost = $18, Total number of apples = 20
2. Calculate the unit price:

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