There is a single firm located in and producing (only) in country A. It pays its workers in country A $120, it pays shareholders within country A $30 of dividends and pays its shareholders in country B $20 dividends. It pays $5 of tax to the government. The rm uses $15 of imported intermediate goods. There is also a government in country A that hires teachers and pays them $40. Please show your calculations to compute GDP using all approaches (product, income and expenditure).