I need help with this question. Can you show me how to do it using excel.

Easy Problems 1-2 Singh Development Co. is deciding whether to proceed with Project GROWTH OPTION The cost would be $11 million in Year 0 There is a 50% chance that X would be hugely successful and would generate annual after-tax cash flows of $7 million per year during Years 1, 2, and 3, However, there is a 50% chance that X would be less successful and would generate only $1 million per year for the 3 years. If Project X is hugely successful, it would open the door to another investment, Project Y, which would require an outlay of $8 million at the end of Year 2. Project Y would then be $16 million at the end of Year 3, Singh's WACC is 9%. 13-1 sold to another company at a price of a. If the company does not consider real options, what is Project X's expected NPV? b. What is X's expected NPV with the growth option? c. What is the value of the growth option