Under generally accepted accounting principles (GAAP), the assets owned by a business are generally reported in the company balance sheet at their historical cost. Three accounting principles, other than this "cost principle", that support the valuation of assets at cost in the balance sheet include: the "going-concern assumption", the "objectivity principle", and the "stable-dollar assumption". Briefly define and explain (two or three sentences each) those 3 accounting principles mentioned above in bold type