Accounts receivable turnover and days' sales in receivables For two recent years, Robinhood Company reported the following: Sales Accounts receivable: Beginning of year End of year 20Y9 20Y8 $7,590,000 $6,382,500 580,000 570,000 530,000 580,000 a. Determine the accounts receivable turnover for 20Y9 and 20Y8. Round answers to one decimal place. 20Y8: 20Y9: b. Determine the days' sales in receivables for 20Y9 and 20Y8. Use 365 days and round all calculations to one decimal place. 20Y8: 20Y9: days days c. Are the changes in the accounts receivable turnover and days' sales in receivables from 2018 to 20Y9 favorable or unfavorable?