Answer
$\ge$
Work Step by Step
RECALL:
The Multiplication Property of Inequality states that for real numbers $a$, $b$, and $c\gt0$,
If $a \ge b$, then $ac \ge bc$
Thus. if $x \ge -4$, then, multiplying $3$ to each side of the inequality gives:
$3(x) \ge 3(-4)
\\3x \ge -12$
Therefore, the missing inequality symbol is $\ge$.