To the right is a list of domestic output and national income figures for a certain year. All figures are in billions. The ques- tions that follow ask you to determine the major national income measures by both the expenditures and the income approaches. The results you obtain with the different meth- ods should be the same. LO25.4 a. Using the above data, determine GDP by both the expenditures and the income approaches. Then determine NDP. b. Now determine NI in two ways: first, by making the required additions or subtractions from NDP; and second, by adding up the types of income and taxes that make up NI. c. Adjust NI (from part b) as required to obtain PI. d. Adjust PI (from part c) as required to obtain DI.