Question #N300
A group of friends are planning a trip. They want to rent a car that costs $\$45$ per day plus $\$0.20$ per mile driven. If they drive $\$m$ miles and the total cost of the car rental is $\$c$, which equation represents the total cost of the car rental?
A. $c = 45m + 0.20$
B. $c = 45 + 0.20m$
C. $c = 45m + 20$
D. $c = 45 + 20m$
Correct Answer is: B
The total cost of the car rental is the sum of the daily rental cost and the cost per mile driven. The daily rental cost is $\$45$, and the cost per mile driven is $\$0.20$ per mile. Since they drive $\$m$ miles, the cost per mile driven is $\$0.20m$. Therefore, the total cost of the car rental is $\$c = 45 + 0.20m$.