 OK, so let's try this problem. It says the label on a 0.750 liter bottle of Italian wine indicates 11.5% alcohol by volume. How many milliliters of alcohol does the wine contain? OK, so the stuff that's given to you in the problem is up there. Let's assume that this 11.5% here is in 100 liters of the wine. That would make our lives a lot easier. So if I've got 100 liters of wine, 11.5 liters of those liters are going to be alcohol. Does everybody understand what I'm saying? So we've got a conversion factor effectively from this here that for every 11.5 liters of alcohol we have, we've got 100. And I'm going to put a decimal point there, liters of wine. OK, but not that big of a deal. So what we can do is take this conversion factor, plug it up here, cancel out our liters of wine, the units, and we'll get liters of alcohol. And from that, we can convert that to milliliters. Does everybody understand what I'm doing? OK, so let's do that. So instead of the volume of wine now, let's figure out, well, what is the volume of alcohol that we're going to have? But this would be in liters, right? We're going to get this in liters. So 100 liters of wine on the bottom, so we can cancel that out, 11.5 liters of alcohol on top. So when we do that, OK, so when we do that, we get, so three sig figs, three sig figs. So this thing's going to have three sig figs. So it's a 0.086. Well, this is one of those ones that does that weird rounding behavior, OK? 862, because remember when it's only the five after it, it goes always to the unit number. So 862 liters, right? So to get milliliters out of that, just 1, 2, 3, right? So when we look at this, it's going to be 86.2 of alcohol. Are there any questions on that one? So if you're having trouble with that rounding rule, I saw some of you kind of cross your eyes at that point in time. Make sure you go back. It's that weird rounding rule, OK? So just make sure you go back. If it's only five after the five is the last number, you've got to round it to the even number, OK? That's why we didn't round it up to three. We kept it at two. OK?