3. An item that is new sells for $1.80, and it costs $1.00 to make it. If the item cannot be sold in new condition, it has a salvage value of $0.40. Demand during the last 50 weeks was as follows: Demand 30 60 530 90 120 Frequency 5 10 20 15 Total =50 weeks I a. Develop the payoff table. b. Determine the expected value of each alternative. c. How many of the items should be ordered?