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

month, $109$ snowboards were sold. REI uses a periodic inventory system.

$($a$)$

Compute the ending inventory at September $30$ using FIFO, LIFO, and average$-$cost$.($Round average cost per unit to $3$ decimal places,

e$.$g$.125\mathrm{.}153$ and final answers to $0$ decimal places, e$.$g$.125.)$