At the beginning of the year, Hernandez Company had total assets of $800,000 and total liabilities of $500,000. Answer the following questions. (a) If total assets increased $150,000 during the year and total liabilities decreased $80,000, what is the amount of owner's equity at the end of the year? $ (b) During the year, total liabilities increased $100,000 and owner's equity decreased $70,000 What is the amount of total assets at the end of the year? $ (c) If total assets decreased $80,000 and owner's equity increased $120,000 during the year, what is the amount of total liabilities at the end of the year