Annual demand is $74000$ per year. Holding cost, h$,$ is $$1\mathrm{.}89$ per unit per year, and

ordering cost, S$,$ is $$175$ per order. Manager, using continuous review inventory model,

currently orders $5000$ units every time she$/$he places an order.

$($a$)$ How many times she$/$he places orders annually? What is the annual holding cost

HC$,$ the annual ordering cost SC and the total cost TC$?$