Melody

Here is another indice post that you can learn from :)

We are just to slow Brittany, Zegroes vaporizes in an instant.   

Come on Zegroes, we want you back !!!!!

You are right Nauseated. 

Permutations can be highly amusing.   

Thanks Chris and Nauseated.

2/3*3=2

2/3*3=2

I like this.  Thanks anon.   

I am going to put it in the end of day WRAP   :))

$$\\4^{-3}=\frac{4^{-3}}{\textcolor[rgb]{0,0,1}{1}} = \frac{1}{\textcolor[rgb]{0,0,1}{1}*4^{+3}}=\frac{1}{4^3}=\frac{1}{64}$$ 

To get rid of a negative indice swap the number or pronumeral with it to the other side of the fraction line and change the negative indice into a positive one. 

If that leaves nothin on the top then put a 1 there.

I put the 2 ones in blue to show you that it did not change its position!   

Actually I turned this into a much harder looking question than necessary.

again let the original price by $100

40% discount brings he price down to $60

now we need to add the $40 back on.

What percent of $60 is $40 ?

   $$\frac{40}{60}\times 100=\;66\frac{2}{3}\%$$

lets work through this one - it is a good question.    Don't worry anon, this was a very tricky question. 

Let the original price be $100.   It makes no difference what you choose for the original price but most people with find it easier if you choose an easy number rather than a letter.

alright we reduce this by 40% so the new price will be 100 - 40% of 100 = $60

so the question becomes   (where x% is the price increase)

60 + x% of 60 = $100

$$\\60+\frac{x}{100}*60=100\\\\
\frac{x}{100}*60=40\\\\
\frac{x}{100}=\frac{40}{60}\\\\
\frac{x}{100}=\frac{2}{3}\\\\
x=\frac{2}{3}\times 100\\\\
x=66\frac{2}{3}\\\\
$So the price would have to increase by $ 66\;\frac{2}{3} \;\%$$

Great answer anon,

another way to do it is

$${\frac{{\mathtt{3}}}{{\mathtt{10}}}}{\mathtt{\,\times\,}}{\mathtt{7\,000}} = {\mathtt{2\,100}}$$

Can you see why ?

If anyone wants me to explain then please ask :)

I know, I know       

Thanks for this fun question anon :))

I'm going to put this is my wrap tonight but only little kids are allowed to answer.   :))