And we get 76.570, so this is approximately 76.570. Now let's tackle the next part. Is the amount of water in the pipe increasing or decreasing at time t is equal to three hours? Give a reason for your answer. Well, what would make it increasing? Well, if the rate at which things are going in is larger than the rate of things going out, then the amount of water would be increasing. But if it's the other way around, if we're draining faster at t equals three, then things are flowing into the pipe, well then the amount of water would be decreasing.