$10)$ A firm has $$400,000$ in credit sales and $$100,000$ in accounts receivable. Compute accounts receivable turnover and average number of collection days. How do these numbers relate to the terms of $2/10$ net$/30?$

$11)$ If Larry from question $9$ has accounts receivable of $$100,000$ rather than $$60,000$:

$1.$ What is Larry$$s accounts receivable turnover?

$2.$ What is Larry$$s average collection period?

$3.$ What should Larry do$,$ if anything?$$