Final answer:
The function C(d) representing the total cost of renting a truck is C(d) = 37.95 + 0.95d. For 55 miles, the cost is $90.20. With a $140 budget, the maximum distance you can drive is 107 miles.
Step-by-step explanation:
The formula for the function C(d), which gives the total cost of renting the truck for one day if you drive d miles, is:
C(d) = 37.95 + 0.95d
To find the total rental cost for driving the truck 55 miles, we substitute d with 55:
C(55) = 37.95 + 0.95(55) = 37.95 + 52.25 = 90.20
Therefore, the total cost to rent the truck for 55 miles is $90.20.
To determine the furthest distance you can drive with a $140 budget, we set up the equation:
140 = 37.95 + 0.95d
Solving for d:
d = (140 - 37.95) / 0.95 = 107.42
When rounded down to the nearest whole number, the furthest distance you can drive the truck is 107 miles.