Answer and Step-by-step explanation:
We want integers that are less than or equal to 9. This will entail the positive numbers 1, 2, ... , 8, and 9. However, we realize that we can include 0 and negative numbers. As there is no lower limit, there are an infinite number of negative integers that will fit this criteria.
Thus, the answer is all integer negative numbers, and 0, 1, 2, ... , 8, and 9.
Hope this helps!