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Just so I'm clear... solution to secondsAlive

```var secondsPerMin = 60;
var minsPerHour = 60;
var hoursPerDay = 24;
var daysPerWeek = 7;
var weeksPerYear = 52;
var secondsPerDay = secondsPerMin * minsPerHour * hoursPerDay;
document.write('<h1>There are ' + secondsPerDay + ' seconds in a day</h1>');
var yearsAlive = 26;
var secondsAlive = secondsPerMin * minsPerHour * hoursPerDay * daysPerWeek * weeksPerYear * yearsAlive;
document.write('<h1> You\'ve been alive ' + secondsAlive + ' seconds');

so  60 * 60 * 24 * 7 * 52 * 26 = 817,869,600?
```

Looks right to me, except I'm getting a value of 817,689,600. Probably just a simple typo.

You can write:

```var secondsAlive = secondsPerDay * daysPerWeek * weeksPerYear * yearsAlive;
```

```var secondsAlive = secondsPerMin * minsPerHour * hoursPerDay * daysPerWeek * weeksPerYear * yearsAlive;
```

Also one advice from me: declare variables separated by comma:

```var secondsPerMin = 60,
minsPerHour = 60,
hoursPerDay = 24,
daysPerWeek = 7,
weeksPerYear = 52;
```

That is the solution I had :) Also agree with the declaration of multiple variables separated by commas. Keeps the code tidier and easier to read.

I had no idea about the comma thing. Thanks for the help guys!

Yup that's also nice info to me thanks.

I just made a new variable of daysPerYear = 365; and did yearsAlive * daysPerYear * secondsPerDay;.

As someone who is awful at maths, should I not have done that? XD