The outdoor temperature is 4 degrees below 0, or .

-4 0 4

The indoor temperature is 72 degrees above 0, or

.

-72 0 72

 The outdoor temperature is 4 degrees below 0 or -4 degrees.

The indoor temperature is 72 degrees above 0 or 72 degrees.

Step-by-step explanation:

We use negative integer to represent loss, below , or withdrawal etc.

On the other hand we use positive integers to show gain , above , deposit etc.

Given statement :   The outdoor temperature is 4 degrees below 0.

So we will represent it by -4 degrees.

The indoor temperature is 72 degrees above 0.

So we will represent it by +72 or 72 degrees.

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b