Final answer:
The constant of variation for a standard car rental at Zippy Car Rentals is a)1/300. The cost per mile when the rental car is driven for 375 miles is a) $0.25.
Step-by-step explanation:
The constant of variation for a standard car rental at Zippy Car Rentals is a. 1/300. This means that the cost of the rental car is directly proportional to the number of miles driven.
To find the cost per mile when the rental car is driven for 375 miles, we can use the formula:
Cost per mile = Total cost / Number of miles driven
Plugging in the values, we get:
Cost per mile = (1/300) / 375 = $0.0025 or $0.25
So, the answer is option a. $0.25.