You are buying a new internet service. The service costs $75 per month. In the equation below, d is the total number of dollars that you pay for your service, and t is the time (in months) that you keep the service.
The relationship between these two variables can be expressed by the following equation:
d = 75t
Identify the dependent and independent variables.
The total number of dollars you pay (dependent / independent variable)
The time in months you keep your service (dependent / independent variable)