Suppose the amounts presented here are basic financial information $($in millions$)$ from the $2025$ annual reports of Nike and Adidas.

NikeAdidasSales revenue$$18,846\mathrm{.}210,893\mathrm{.}6$Allowance for doubtful accounts, beginning$710113$Allowance for doubtful accounts, ending$117\mathrm{.}0129$Accounts receivable balance $($gross$),$ beginning$2,806\mathrm{.}01,825$Accounts receivable balance $($gross$),$ ending$2,925\mathrm{.}01,621$

$($a$1)$ Calculate the accounts receivable turnover for both companies. $($Round answers to $1$ decimal place, e$.$g$.,12\mathrm{.}5.)$

$($a$2)($The parts of this question must be completed in order. This part will be available when you complete the part above.$)$