please use same values and solve with complete formulas. thanks

4. ROYAL company is considering whether to replace one of its devices with a newer model. The firm's three choices are: keep the exist model; design a new device with its resources; and purchase a new design. The market for these devices will be either "favorable" or "unfavorable" of the replacement model. The financial estimates are as follows: Keeping the old design will yield a profit of $9 million dollars. Designing the new one internally will yield $13 million if the market is favorable," but a $6 million loss if the market is " unfavorable." Purchasing the new design will profit $7 million under " favorable " $4 million under " unfavorable." The company feels that the market has a 60% chance of being " favorable " and a 40% chance of being" unfavorable". Do nothing could be considered as a choice. A) Draw the decision tree. B) Calculate expected value for all courses of action. C) What action yields the highest expected value