You didn't describe the situation so I can't answer.
However: if the graph of the situation is a straight line then the situation is linear, and if the graph is not a straight line then it is nonlinear.
I would go with A but I am not 100% sure so you may want to check however you can.
30•4=120, 8•2=16. 120+16=136
If he took 5 steps forward and then 5 steps backwards he would be at his starting position
The twelve cups have to be divided evenly between the seven jars