Identify the most specific set to which each of the following numbers belongs:(5 points) -9, √144, 0.121212, √47, 0

answer choices: integer, irrational number, whole number, natural number, rational number

-9: integer

√144: whole number (since the square root of 144 is 12)
0.121212: rational number (because it can be expressed as a fraction: 121212/1000000)
√47: irrational number (the square root of 47 cannot be expressed as a fraction or a decimal that terminates or repeats)
0: rational number (because it can be expressed as a fraction: 0/1)

there can only be one answer one time for each box, what is the correct option for each one, and the last one?

Apologies for the confusion. Here are the correct options for each number:

-9: integer
√144: whole number
0.121212: rational number
√47: irrational number
0: whole number

you have whole number as an answer twice, that is wrong

Apologies for the mistake. Here are the correct options for each number:

-9: integer
√144: whole number, rational number
0.121212: rational number
√47: irrational number
0: whole number, integer