Please write out formulas and calculations used.

NPV Your division is considering two projects with the following cash flows (in millions): 3 2 + $10 $9 Project A Project B 1 + $5 $10 - $25 - $20 $17 $6 a. What are the projectsNPVs assuming the WACC is 5%? 10%? 15%? Answer b. What are the projects' IRRs at each of these WACCs? Answer c. If the WACC was 5% and A and B were mutually exclusive, which project would you choose? What if the WACC was 10%? 15%? (Hint: The crossover rate is 7.81%.)