Consider a one-period model where the only two costs are the holding cost, given by
![](https://test.transtutors.com/qimg/62c6629d-cea0-45b1-9707-b7b2252cfa5e.png)
If you order, you must order an integer number of batches of 100 units each, and this quantity is delivered immediately. Let G(y) denote the total expected cost when there are y units available for the period (after ordering).
(a) Write the expression for G(y).
(b) What is the optimal ordering policy?