Steam at 0.6 MPa and dryness fraction of 0.9 expands in a cylinder behind a piston isentropically to a pressure of 0.1 MPa. Calculate the changes in volume, enthalpy and temperature during the process.

You are in an inventory management field these days. You are working for a place which works on 365 working days per year. The annual demand is 901 widgets per year. The ordering cost is $111 per order, regardless of size. The holding cost is $6 per widget per year. How many orders per year will you place? Please round your answer to the nearest integer.

I am attaching both questions for 4 and 5 with the question in the image. thank you. NOTE : So the last person answered this question WITHOUT refencing the answer for whether question 4 or 5 answeres were given, so i am asking for question 5(or the answer for the question that was NOT solved because it was not referenced.) These were the following answers given to me from the last person on bartleby who answered my question without referencing whether it was the answer for question 4 or 5.  1 pass 2 fail 3 fail 4 pass

follow up question - for the past two question. (subquestions)