Are there options to this?
3/4 < 33/40 because 30/40 < 33/40
The correct answer is B. $210
Just divide -30 m/s (the change in velocity) by 12 seconds (the time required for the car to come to a stop):
-30 m/s
----------- = - 2,5 m / (sec)^2 (answer)
12 sec
