The following information is available for market, inc. and supply, inc. at december 31: accounts market, inc. supply, inc. accounts receivable $ 59,200 $ 79,000 allowance for doubtful accounts 2,248 2,556 sales revenue 616,960 917,100 required a. what is the accounts receivable turnover for each of the companies? b. what is the average days to collect the receivables? c. assuming both companies use the percent of receivables allowance method, what is the estimated percentage of uncollectible accounts for each company?