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The following table summarizes some of key financial data for Copeland Corporation (unit: thousand dollars except ratio figures): (a) Determine the accounts receivables. (b) Determine the amount of current liabilities. (c) Calculate the amount of long-term debt. (d) Calculate the return on common equity. Item Value Cash and marketable securities Fixed assets Sales Net income $10.000 $90,000 $200,000 $15,000 $150,000 4.20 91.25 days $200,000 Inventory Current ratio Average collection period Long-term debt