Exercise $5\mathrm{.}1.$For each of the following sentence, state whether it is anatomic proposition or a compound proposition or neither.

$($a$)$ Today is a hot day.

$($b$)9+8-7=44.$

$($c$)$y$=6$x or x$=(1/6)$y$.$

$($d$)$ Is it too loud or too quiet in here?