Answer:
- Discount car rentals charges less daily
- After 3 days
Explanation:
Required
Which charges less per day
When is the total cost the same
First, calculate the slope (m)

From the table, we have:


So, we have:



The equation is then calculated as:




So, the equation of the table (i.e. Discount Car rental) is:

While the equation of Pay Less is:

The company that charges less per day has the smaller slope and that is: Discount car rental because the slope (40) is less than the slope (55)
For the total cost to be the same, we simply equate both expressions:
i.e.




