Western Windows constructs and installs windows for new homes. The sales staff are having a meeting and reviewing the following information to determine how to help reduce days' sales uncollected. Accounts receivable Net sales 2020 2019 2018 $ 631,00 $ 436,000 $ 377,000 6,530,000 5,572,000 4,895,000 Required: a. Calculate the days' sales uncollected for 2018 to 2020 and identify whether the trend is favourable or unfavourable. (Round the final answer to 2 decimal places. Do not round intermediate calculation. Use 365 days a year.) 2017 Days' sales uncollected 2016 days 2015 days days b. What can a salesperson do to improve days' sales uncollected? (You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer.) Decreasing the ratio of soles by encouraging more cash sales, Increasing the ratio of sales by encouraging more cash sales. Applying stricter credit policies to eliminate credit sales to customers that never pay Applying lenient credit policies to eliminate credit sales to customers that never pay. Identifying customers most delayed in their payments and encouraging earlier payments or cash sales