Answer: Marvin needs approximately 19 days to rent the car.
Explanation:
Since we have given that
Amount Marvin get on a discount coupon = $25
She decided to buy insurance for each day.
Let the number of days be x
cost of insurance = $465
According to question, it becomes,
![25x=465\\\\x=(465)/(25)\\\\x=18.6\\\\x=19\ days](https://img.qammunity.org/2020/formulas/mathematics/high-school/tyx7syruqxmyitl16ampcxhtww1qrizrxv.png)
Hence, Marvin needs approximately 19 days to rent the car.