please show step by step to the solution

12 ) This question is ased upon the seasonal product problem presented above.

A store has space to order 8,000 units. If they order 8,000 units, how many units are expected to be leftover at the end of the selling season? (report your answer to 2 decimal places)

13) This question is ased upon the seasonal product problem presented above. A store places an order for 10,000 units. What is the expected profit? (eport your answer to 2 decimal places)

14) This question is ased upon the seasonal product problem presented above. At the optimal order size what is the expected profit? (report your answer to 2 decimal places)

15) This question is ased upon the seasonal product problem presented above. At the optimal order size, what is the expected number of units that do not sell? (report your answer to 2 decimal places)

16) This question is ased upon the seasonal product problem presented above. At the optimal order size and if each customer only purchases one unit, how many customers will be turned away because the store runs out of product? (report your answer as an integer)