REl sells snowboards. Assume the following information relates to REl's purchases of snowboards during September. During the same

month, $101$ snowboards were sold.

Additional data regarding the company's sales of snowboards are provided below. Assume that REl uses a perpetual inventory system.

$($a$1)$

Calculate the weighted$-$average unit cost. $($Round answers to $3$ decimal places, e$.$g$.5\mathrm{.}125.)$

September $1$$

September $5$$

September $12,$$

September $16$ $

September $19,$$

September $26,$$

September $29$ $

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