The distance a car travels varies directly with the time it ...

Question Analysis
This question tests the understanding of direct variation and the ability to find the constant of variation given a real-world scenario.

Key Concept Explanation
In a direct variation, the relationship between two variables and can be expressed as , where is the constant of variation.

Step-by-step Solution
1. Identify the given values: miles and hours.
2. Use the formula for direct variation: