Happy Corporation manufactures three products. Because of a recent lack of skilled wood carvers, the corporation has had a shortage of available labor hours. The following per unit data relates to the three products of the corporation: Letter Openers Eagles Doves Ducks Selling price Variable cost .............. Labor hours required .$30......... $80 .........$42 $20 ....... $40 ......... $20 .... 1............ 6 .............2 Assume that the Happy Corporation only has 1,800 labor hours available next month. Also assume that the Happy Corporation can only sell 800 units of each product in a given month. What is the maximum amount of contribution margin that the Happy Corporation can generate next month given this labor hour shortage? Product X-547 is one of the joint products in a joint manufacturing process. Management is considering whether to sell X-547 at the split-off point or to process X-547 further into Xylene. The following data have been gathered: I. Selling price of X-547. II. Variable cost of processing X-547 into Xylene. III. The avoidable fixed costs of processing X-547 into Xylene. IV. The selling price of Xylene. V. The joint cost of the process from which X-547 is produced. Which of the above items are relevant in a decision of whether to sell the X-547 as is or process it further into Xylene