Answer:
12
Step-by-step explanation:
The numbers of choices for each of B, C, D are independent of the choices the predecessors have made. It is clear where the car's owners will sit, so all we have to care about is where we put the other people. There are 16−4=12 places left in the cars, so there are 12!
Since you didn't put the solutions I'll just explain how to answer it. Most likely the answers are in (x,y) form. Just substitute x and y into the equation and then solve. If it is true it is a solution.
Example: 2x ≥ 4x - 2
A. 1
2(1) ≥ 4(1) - 2
2 ≥ 4 - 2
2 ≥ 2
In this instance A would be a correct answer.
(If you would like me to actually answer the question than you will need to include the answer choices.)
D
B
A
C
this is the order of what I think is the best answer