The stock has dropped $5, has raised $4, or remains the same (aka has not dropped or raised)
1/3 divided by 1/6 = 2
2 miles per day
3 would be the answer the question.
The correct answer is that "Dish A has a greater rate of change."
In Dish A, the values are going up by 2 each day. In Dish B, the values are staying the same.
Therefore, Dish A has a greater rate of change.