Melody

If a is negative then 1/a is negative too.

Huh??     What do you want to do with them?   You collect them, and give them out to others.

They are kind of like marbles.

Here is a marble for you.  It is really one of CPhill's, but he won't mind I don't think, he has lots.

And if he wants it back maybe he could trade you for something really valuable, like points LOL

He's really very generous, I do not think he will mind at all.    

But Dakota, if the original sale price was $656.25  (as you said)

then the discount would be   $${\mathtt{0.25}}{\mathtt{\,\times\,}}{\mathtt{656.25}} = {\frac{{\mathtt{2\,625}}}{{\mathtt{16}}}} = {\mathtt{164.062\: \!5}}$$           $164.06    (to the nearest cent)

and the reduced price would be

$${\mathtt{656.25}}{\mathtt{\,-\,}}{\mathtt{164.06}} = {\mathtt{492.19}}$$

BUT the reduced price in the question was     $525   

So something seems to be incorrect  

Can you work out your error.       

Yes i know that you are new Dakota,  welcome to the forum, I hope you like it here.

Please don't mind me giving you so much direction :/

But if I don't tell you what we want you will never know.   

That is also an approximation.

$${\sqrt{{\mathtt{7}}}}$$      is  another irrational number - just like pi is.   If you try to right it as a number, the digits will go on for ever, they will not terminate or recur.  :)

Dakota, please include working because otherwise the asker cannot learn anything :)

If you write another post below this one I will give you the points :)

Dakota, the asker doesn't want to put a square number in.    

On the web2 calc you just enter   4^8

on other calcs you may enter     4  $${{\mathtt{x}}}^{{\mathtt{y}}}$$    8        

OR on newer calcs sometimes the y is just a black box.

$${{\mathtt{4}}}^{{\mathtt{8}}} = {\mathtt{65\,536}}$$

$$\frac{94+82+78+80+x}{5}>85$$

You must find the smallest x that satisfies this :)

$$\\((5^5)(8^{-5}))^{10} \\\\
=(5^5*8^{-5})^{10} \\\\
=5^{5*10}*8^{-5*10} \\\\
=5^{50}*8^{-50} \\\\$$

Maybe this will help