Answer:
C) 15 days
Explanation:
To answer this question, we must make an equation, so lets use the variable 'd' equal the number of days a car is being used for:
22d + 100 = 26d + 40
Now, we combine like terms:
22d + 100 = 26d + 40
-22d -22d
100 = 4d + 40
-40 -40
60 = 4d
/4 /4
d = 15
So, the rental cost will be the same for both car companies after 15 days
Hope this helps :)