The total cost of renting a truck for one day is compounded by the cost for the day of rent plus the cost for the miles travelled.
The cost for the day is $19.95, while the cost for the total miles traveled is the cost per mile ($0.50) times the total number of miles traveled. Let's call M the miles traveled and C the total cost of renting the truck.
The model will be as follows:
Now we need to evaluate the function for the given number of miles.
For this case, we are given that the miles traveled were 73.
Evaluating the function for M = 73:
Then, the total cost for the rent of a truck for one day when 73 miles were traveled is $56.45.