Identify the most specific set to which each of the following numbers belongs:(5 points)

47−−√
-9
144−−−√
0.121212...
0
words:
rational number
whole number
integer
natural number
irrational number

47−−√ - irrational number (square root of a non-perfect square)

-9 - integer (negative whole number)
144−−−√ - whole number (perfect square)
0.121212... - rational number (repeating decimal)
0 - whole number, integer, rational number

what is the natural number one for tho?

The natural numbers are the set of positive integers starting from 1 and upward. Therefore, the natural number one is simply 1.

what is the natural number between these numbers

To answer your question, I would need to know between which two numbers you are referring to. Please provide the numbers so that I can give you the natural number between them.

what is the natural number between these numbers

47−−√
-9
144−−−√
0.121212...
0

The natural numbers are the set of positive integers starting from 1 and upward. Based on the numbers you provided, there is no natural number between them, as none of the numbers are natural numbers.

47−−√ - irrational number (square root of a non-perfect square)
-9 - integer (negative whole number)
144−−−√ - whole number (perfect square)
0.121212... - rational number (repeating decimal)
0 - whole number, integer, rational number