6. Using any relevant information below, calculate GDP via the expenditure approach. $ 50 billion + Inventory investment Fixed investment 120 billion Consumer durables 420 billion Consumer nondurables 275 billion Interest 140 billion Indirect business taxes 45 billion Government wages and salaries 300 billion Government purchases of goods and services 110 billion Imports 80 billion Exports 40 billion Consumer semi-durables 185 billion Profits 320 billion