$($a$)$ Minimum cost production lot size

$($b$)$ Number of production runs per year

$($c$)$ Cycle time

$($d$)$ Length of a production run $($in days$)$

$|x$ days

$($e$)$ Maximum inventory

$($f$)$ Total annual cost $($in $$)$

$

$

$x$

$($g$)$ Reorder point