Please help with part 2-D and question 4

Alpha and Beta are divisions within the same company. The managers of both divisions are evaluated based on their own division's return on investment (ROI). Assume the following information relative to the two divisions: Case 1 2 3 4 80,000 400,000 150,000 300,000 80,000 400,000 100,000 300,000 $ 30 $ 18 $ 90 $ 65 $ 75 $ 40 $ 50 $ 26 Alpha Division: Capacity in units Number of units now being sold to outside customers Selling price per unit to outside customers Variable costs per unit Fixed costs per unit (based on capacity) Beta Division: Number of units needed annually Purchase price now being paid to an outside supplier *Before any purchase discount. $ 6 $ 15 $ 20 $ 9 5,000 30,000 20,000 120,000 $ 27 $ 89 $ 75* 2. Refer to case 2 shown above. A study indicates that Alpha Division can avoid $5 per unit in shipping costs on any sales to Beta Division. a. What is Alpha Division's lowest acceptable transfer price? b. What is Beta Division's highest acceptable transfer price? c. What is the range of acceptable transfer prices (if any) between the two divisions? Would you expect any disagreement between the two divisional managers over what the exact transfer price should be? d. Assume Alpha Division offers to sell 30,000 units to Beta Division for $88 per unit and that Beta Division refuses this price. What will be the loss in potential profits for the company as a whole? 4. Refer to case 4 shown above. Assume that Beta Division wants Alpha Division to provide it with 120,000 units of a different product from the one Alpha Division is producing now. The new product would require $21 per unit in variable costs and would require that Alpha Division cut back production of its present product by 45,000 units annually. What is Alpha Division's lowest acceptable transfer price