Luistuet the Iulluwing Casti nows. a. What is the NPV at a discount fate of zero percent? Note: Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32 . b. What is the NPV at a discount rate of 11 percent? Note: Do not round intermediate calculations and round your answer to 2 decimal places, e.g... 32.16 . c. What is the NPV at a discount rate of 21 percent? Note: A negotive answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16. d. What is the NPV at a discount rate of 31 percent? Note: A negative answer should be indicated by a minusisign. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16