Answer:
Step-by-step explanation:
b. Using constant dollar aproach we will not consider inflation rate into the account and thus, they will pay the same account each year that is $700.000.
c. Now we need to find the present worth of expenditure over the next five year using the 'current approach'. We will take inflation and real interest rate into the account and thus, will use combined rate of return in order to calculate the present worth PW.
Check the calculations in the attached images.
d. Check the calculations in the attached images.