Answer
-3 $\lt$ x $\lt $ 0
Work Step by Step
(-3, 0)
With the notation, create the inequality
{x$\mid$a$\lt$x$\lt$b}
Plug-in a for -3 and b for 0
{x$\mid$-3$\lt$x$\lt$b0} = -3 $\lt$ x $\lt$ 0
Create the number line (Note: the -3 and 0 are specified with circles. This means that the region does not include -3 and 0)