So two hours after leaving, after leaving, Eddie drove, and this means, let me be grammatically correct, drove at an instantaneous, instantaneous, instantaneous rate of, and let me use a different color now for this part, of 100, and what are the units? Well, the distance was given in kilometers, and now we're gonna be thinking about kilometers per unit time, kilometers per hour. So this is 100 kilometers, kilometers per hour. So that's the interpretation there. Let's do another example. Here we are told a tank is being drained of water. The function v gives the volume of liquid in the tank in liters after t minutes.