Question

The set of all numbers less than or equal to −4 or greater than 0.

Answer 1

Explanation:

-4 ≥ x

-0 ≤ x

I don't think you can combine this into one statement.

Your line looks something like

<---------------O O------------------------->

-4 -0

Shade in the 2 Os. The shaded in Os are included in the way the line looks.