Whole numbers are numbers without a decimal. Some of these numbers are decimals, while others need to be converted. First cross out the ones that are decimals.
-9
0.01 x
2 1/2
12/4
That leaves you with 3 choices. Convert everything to decimal(if possible).
[tex] -9 = -9 \\ \\ 2 \frac{1}{2} = 2.5 \\ \\ \frac{12}{4} = 3 [/tex]
One is a decimal, while the other 2 are whole numbers.
Your answer is [tex] -9 [/tex] and [tex] \frac{12}{4} [/tex]
