Final answer:
To determine which equation best represents the cost for a certain number of days at a gym, we must know the daily rate. Without that information, we cannot confidently choose the correct option among those provided.
Step-by-step explanation:
The question asks us to find an equation that represents the cost c for d days at a workout gym. We need an equation that expresses the total fee as a product of the number of days (d) and the daily rate. Given the options:
- c = d * 5
- c = d * 15
- c = 2d * 15
- c = 2d * 5
Without further information about the rate per day, it is not possible to determine which of the above options is correct. It is essential to know the daily rate to select the appropriate equation. If the daily rate was provided elsewhere in the assignment or context, you could match that rate with the options given to find the correct equation. For instance, if the daily rate was $15, then the correct equation would be c = d * 15.