Glamor boutique uses the newsvendor model to manage its inventory. Demand for its product is normally distributed with a

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Glamor boutique uses the newsvendor model to manage its
inventory. Demand for its product is normally distributed with a
mean of 600 and a standard deviation of 300. Glamor
boutique purchases the product for $20 each unit and sells
each for $40. Inventory is salvaged for $10. What is its expected
inventory if Glamor boutique’s order quantity is 300 units?
Use table 13.4.
40
35
25
30
Please provide steps, thanks