Algebra-1

Question Analysis
This question tests the student's ability to identify a linear relationship from a real-world scenario.

Key Concept Explanation
Linear relationships are characterized by a constant rate of change, which means the dependent variable (in this case, the total cost) changes by a fixed amount for each unit increase in the independent variable (number of days).

Step-by-step Solution
1. Identify the initial value: The flat fee is $80.
2. Identify the rate of change: Th...