How to say $(a,b]$ and $[a,b)$ in English?
$(a,b]$ is an interval from $a$ (exclusive - i.e. not including $a$ itself) to $b$ (inclusive)
$[a,b)$ is an interval from $a$ (inclusive) to $b$ (exclusive - i.e. not including $b$ itself)
For $(a,b]$ I say the interval from $a$ to $b$ including $b$ but not including $a$.