185. The following are some of the national income accounts for the country of Alder (all figures are in $billions): Indirect taxes (net of subsidies) $160 Personal income taxes 150 Depreciation 100 Transfer payments 140 Exports 120 Government purchases of goods and services 380 Imports Disposable income 160 500 Net investment 60 Net foreign factor income -40 From this information, find the value of: a) consumption b) GDP c) national income