18) Dunn Company had net credit sales during the year of $1,300,000 and cost of goods sold of $800,000. The balance in accounts receivable at the beginning of the year was $185,000, and the end of the year it was $140,000. What was the accounts receivable turnover? a. 4.9 b. 7.0 c. 8.0 d. 9.3 19) The financial statements of Koritko Manufacturing Company report net sales of $720,000 and accounts receivable of $70,000 and $90,000 at the beginning and end of the year, respectively. What is the average collection period for accounts receivable in days? a. 34.4 b. 40.6 c. 45.6 d. 81.2