10. What is the procedure for deriving the after-tax nominal net cash flow of an incremental project when we expect that it will change the tax timing of the underlying business? 11. What is the procedure for deriving the after-tax nominal net cash flow of an incremental project when we expect that it will not change the tax timing of the underlying business? 12. What is the procedure for comparing the after-tax nominal net cash flows of two alternative incremental projects when we expect that neither project will change the tax timing of the underlying business