Final answer:
The car rent rate is a continuous variable.
Step-by-step explanation:
The car rent rate can be considered a continuous variable.
In this case, the rent rate can take on any value within a range. For example, a car can be rented for $30 per day or $50 per day, or any value in between. There are no specific values that the rent rate must take on.
Therefore, the car rent rate is a continuous variable.