And so let's munch on it a little bit. And we get 27.965. So this is approximately equal to 27.965. So now we're ready to answer, at what time t is the amount of water in the pipe at a minimum? We can see that at time 3.272, we have less water in the pipe than either right when we started or right at the end of our interval at t equals eight. So at what time t? We say t is equal to 3.272.