4.

5.

doesn't belong with the other three because it is irrational number
The other three can be expressed as a ratio between two <span>integers.

</span>
Domain is all real numbers.
Range is all real numbers geater than 0
Answer:
c
Step-by-step explanation:
Answer:
postive 12
Step-by-step explanation:
16-4=12
If you want to translate the phrase 30 added to a number that is decreased by 5 into a math expression, you can do it like this:
a number ... n
30 added ... + 30
decreased by 5 ... - 5
Now you just have to put this together: n + 30 - 5 or n - 5 + 30. So, the correct result is a.