Accounts receivable turnover and days' sales in receivables

For two recent years, Robinhood Company reported the following:

Accounts receivable:

Beginning of year

$590,000,510,000$

End of year

$580,000$

$590,000$

a$.$ Determine the accounts receivable turnover for $20Y9$ and $20$Y$8.$ Round answers to one decimal place.

$20$Y$8$: $$

$20$Y$9$: $$

b$.$ Determine the days' sales in receivables for $20Y9$ and $20Y8.$ Use $365$ days and round all calculations to one decimal place.

$20$Y$8$: $$ days

$20$Y$9$: $$ days

c$.$ Are the changes in the accounts receivable turnover and days' sales in receivables from $20Y8$ to $20Y9$ favorable or unfavorable?