Well, there are 60 minutes in 1 hour, and there are 60 seconds in 1 minute, so in 60 minutes, there are 60 * 60 seconds, or 3600 seconds in 60 minutes, or 1 hour, therefore, in 1 hour there are 3600 seconds.
the machine makes 7 aliens in 2 seconds, how many will it make in 3600 seconds?

that many.
Answer:
Using Pythagoras Theorem, squareroot 15^2 - 5^2.
After you found the opposite length, use the cosine rule to find angle x.
The first step in solving this problem is to compute the amount
of markup. You can do this by deducting the original price to the marked up
price.
$70.00 - $35.50 = $34.50
To get the percent of markup, you have to divide the amount
of markup to the original price.
$34.50 / $35.50 = 97.2%
They are equal because if you make 4/5 into a denominator of 10 it is 8/10
I would use the quadratic equation for this.