Question 20205
1.)combining like terms to solve equations ex:n=5n=42
2.)using the distributive property ex:(8n-3)1/4
3.)rational numbers and equations
4.)using probability
5.)percent equations

Combining like terms;
A like term is a term that is EXACTLY alike;
x + 2x, are like terms, you can add those together.
{{{x^2+x}}} are not like terms so you can not add those together.

Using distributive property;
(8n-3)1/4
you multiply each term by 1/4;
8n(1/4)-3(1/4)
{{{8/4}}}n-{{{3/4}}}

Rational numbers;
any number that can be written as a fraction and has an opposite;
ex;
8=8/1; opposite of 8 is -8

Using propability
Propability is a way of telling how likely somethng will or will not happen.
ex. 
lets say you have a deck of 52 cards, there should be 13 spades, but the ace of spades gets ripped, sowhat will the chance br that you pick an ace? P(S)={{{12/51}}}

Percent equations;
{{{P/100}}}x of = is
ex.;
twenty percent of what number is 15?
{{{20/100}}}xWN=15
We start by multiplying each side by {{{100/20}}}
{{{(100/20)}}}{{{20/100}}}xWN=15({{{100/20}}})
WN={{{1500/20}}}
WN=75
Hope I got everything for you, and you understand
=)