Macroeconomics 20th Edition by Campbell McConnell ,Stanley Brue ,Sean Flynn

Exercise 15

If in some country personal consumption expenditures in a specific year are $50 billion, purchases of stocks and bonds are $30 billion, net exports are -$10 billion, government purchases are $20 billion, sales of second-hand items are $8 billion, and gross investment is $25 billion, what is the country's GDP for the year?