Acar rental company off ers two options. option a is $25 per day plus $0.13 per mile. option b is $13 per day plus $0.36 per mile. if a car is rented for one day, for how many miles will option b be cheaper?

will save money when Plan A costs you more than 50 dollars
so let say for X mile Plan B is better than Plan A
Hence 30 + 0.1X = 50
Which gives X = 200 miles
so If you want to go for more than 200 miles , Plan B will save money in that case.

Hope this helps ;)