Answer:
70 Car Riders.
Explanation:
It's 70 car riders because it said that the ratio is 7 (car riders) to 8 (bus riders) And there are 150 students that attend the school. Now, what if you take away the 0 from the 150? You get 15. So now you have 7 (car riders) to 8 (bus riders) with 15 students. That makes things way more easier because 7 + 8 = 15. And if you add the 0 back to 150, you get 70 car riders and 80 car riders. (You probably already figured this out.)