At december 31 2017 2016 2015 assets cash $ 31,800 $ 35,625 $ 37,800 accounts receivable, net 89,500 62,500 50,200 merchandise inventory 112,500 82,500 54,000 prepaid expenses 10,700 9,375 5,000 plant assets, net 278,500 255,000 230,500 total assets $ 523,000 $ 445,000 $ 377,500 liabilities and equity accounts payable $ 129,900 $ 75,250 $ 51,250 long-term notes payable secured by mortgages on plant assets 98,500 101,500 83,500 common stock, $10 par value 163,500 163,500 163,500 retained earnings 131,100 104,750 79,250 total liabilities and equity $ 523,000 $ 445,000 $ 377,500 1. compute the current ratio for the year ended 2017, 2016, and 2015. 2. compute the acid-test ratio for the year ended 2017, 2016, and 2015.