Sandhill Medical manufactures hospital beds and other institutional furniture. The company's comparative balance sheet and income statement for 2019 and 2020 follow. Sandhill Medical Comparative Balance Sheet As of December 31 2020 2019 Assets Current assets Cash Accounts receivable, net Inventory Other current assets Total current assets Property, plant, & equipment, net Total assets $380,000 1,023,000 742,000 381,300 2,526,300 8,703,820 $11,230,120 $417,500 776,400 681,050 247,050 2,122,000 8,439,965 $10,561,965 Liabilities and Stockholders' Equity Current liabilities Long-term debt Total liabilities Preferred stock, $5 par value Common stock, $0.25 par value Retained earnings $3,169,000 3,702,700 6,871,700 58,950 104,600 $2,846,000 3,892,600 6,738,600 58,950 103,900 3660515 4 194870 Total stockholders' equity Total liabilities and stockholders' equity 4,358,420 $11,230,120 3,823,365 $10,561,965 Sandhill Medical Comparative Income Statement and Statement of Retained Earnings For the Year 2020 2019 Sales revenue (all on account) $10,177,300 $9,614,000 Cost of goods sold 5,612,000 5,298,700 Gross profit 4,565,300 4,315,300 Operating expenses 2,840,300 2,634,200 Net operating income 1,725,000 1,681,100 Interest expense 300,350 308,650 Net income before taxes 1,424,650 1,372,450 Income taxes (30%) 427,395 411,735 Net income $997,255 $960,715 Dividends paid Preferred dividends 29,450 29,500 Common dividends 433,450 413,050 Total dividends paid 462,900 442,550 Net income retained 534,355 518,165 Retained earnings, beginning of year 3,660,515 3,142,350 Roto A10070 LLOC 3,142,350 Retained earnings, beginning of year Retained earnings, end of year 3,660,515 $4,194,870 $3,660,515 (a-d) Calculate the following liquidity ratios for 2020. (If working capital is negative then enter with a negative sign preceding the number or parentheses, e.g.-15,000 or (15,000). Round all answers except working capital to 2 decimal places, e.g. 2.55.) a. Working capital $ b. Current ratio C. Acid-test ratio d. Accounts receivable turnover times