 So let's try another conversion problem. But this time we'll be converting units of time. So it'll be a fun problem. These are units that you should probably inherently know just from looking at the clock and keeping appointments and doing all that kind of stuff. But anyways, it says if you're 19 years old, how many seconds have you lived and how many months have you lived? So let's start with the seconds part. So it says it gives you 19 years. So remember, you know some conversion factors from years or some time conversion factors. So you want to go from years to seconds. So you know that there are 60 seconds in one minute, right? So you know some other ones, right? So you can go from a minute to an hour, right? So you know that there are 60 minutes. You also know days. Yeah, that's right, days. So how many? So 24, right? 24 hours in one day. And unless it's a leap year, which we won't count, you know how to go from days to years, right? There are 365 days. And if you didn't know these, these are ones you should obviously keep to memory for now. So anyways, these won't be given to you on the test. Anyway, so let's do this one now. So remember, you just cancel. So you want to cancel years out. So how do I get that? You've got the conversion factor. So the years, 365 days. But days isn't what you want. You want seconds. You can't get there yet. So you can cancel out days somehow by doing it with hours, right? So one day is 24 hours. It cancels your days out, not seconds yet. I'm going to run into the conversion factor here. So 24 hours. So one hour, 60 minutes, cancel, cancel. That's a good thing. I don't need those ones anymore. And then cancel minutes. One minute, 60 seconds. So cancel, cancel. And there we are. We're at second. So that's how many seconds you put in. So it gives it to us in two sig figs. So let's just keep it at two sig figs and we'll do it in scientific notation. We'll write down what the calculator says. So 19 times 365 times 24 times 60 times 60. So my calculator reads 5, 9, 9, 1, 8, 4. But that's not the right answer because you got to do it to two sig figs. So we've done decimal points there. One, two, three, four, five, six, seven, eight. And you lived if you were 19 years old. So ticking away, depending on just ticking away. How many months have you lived? Well, we can do conversion factors. So years to months. So in one year. So one and two.