can you please show all steps

Problem 6. Problem 7. Freddie the newsboy runs a newstand. Because of a nearby nancial services ofce, one of the newspapers he sells is the daily Financial Journal. He purchases copies of this newspaper from its distributor at the beginning of each day for $1.50 per copy, sells it for $2.50 each, and then receives a refund of $0.50 from the distributor the next morning for each unsold copy. The number of requests for this newspaper range from 15 to 18 copies per day. Freddie estimates that there are 15 requests on 40 percent of the days, 16 requests on 20 percent of the days, 17 requests on 30 percent of the days, and 18 requests on the remaining days. Use the stochastic single-period model for perishable products to determine Freddie's op- timal order quantity. Find the optimal ordering policy for the stochastic single-period model with a setup cost where the demand has the probability density function 1 - 0 5 t 5 20 0, otherwise fo(fl={ and the costs are: Holding cost = $1 per item, Shortage cost = $3 per item, Setup cost = $1.50, Production cost = $2 per item. Assume preexisting inventory 1 on hand