Answer
Different is "$w$ no more than $-7$".
Both inequalities:
$w\geq-7,~~~~w\leq-7$
Work Step by Step
$w$ greater than or equal to $-7$:
$$w\geq-7$$
$w$ no less than $-7$:
$$w\geq-7$$
$w$ no more than $-7$:
$$w\leq-7$$
$w$ at least $-7$:
$$w\geq-7$$
So, the third statement is different.