Continuedfrom Question $5$

$(4$ points $($bonus$))$ Consider the average pipeline inventory that you just calculated in part h$)$ of Question $5$ to be a part of the current inventory level of MHQ$.$ So$,$ MHQ calculates its current inventory position as average pipeline inventory $+$ current MHQ storage inventory $($including MHQ safety stock$).[$If you did not solve Q$5$ h$),$ use an assumed value of the average pipeline inventory.$]$ Consider one review cycle.

Day $1$ : Assume that the arriving transporter has been unloaded, orders from Psi and Omega have been fulfilled, and a new order to the UNSA has been placed, who promptly sent out the next transporter from Earth. Although the order to Earth has already been placed, Colin Farrell, the manager of MHQ double checks the amount of oxygen once more and measures a total volume of $6000$ m$3$ in the MHQ storage $($not including the pipeline inventory$).$

Day $29$: The demand on Mars during the past review period was exactly the expected $4-$week demand. Orders from Psi and Omega have been fulfilled $-$ assume here they ordered exactly what they need for four weeks on average. The nearest space transporter has not yet arrived but it is