Given:
The base fee is, b = $14.75.
The charge per mile is, p = $0.06.
The equation for total rent is,

The objective is to find the total rental cost for 40 miles,
Step-by-step explanation:
In the given equation x represents the miles travelled by the person.
To find the total cost 40 miles, substitute x = 40 in the given equation,

On further solving the above equation,

Hence, the total rental cost for 40 miles is 17.15 dollars.