A car rental agency charges A. $60 per day or B. $30 a day plus $.30/mile. If you plan to drive 200 miles in one day, which is the best plan for you, A or B

To solve, I used a very simple method. 30$ +.30a. In this case, 200 would be a. Multiply. 30 by 200 and you get 60, aka $60. Then add 30 and you get $90. 90 > 60, meaning that A would be the better deal