Periodic Inventory by Three Methods

The units of an item available for sale during the year were as follows:

Jan. $1$ Inventory $9$ units at $$45$

Feb. $17$ Purchase $5$ units at $$46$

Jul. $21$ Purchase $20$ units at $$47$

Nov. $23$ Purchase $18$ units at $$49$

There are $9$ units of the item in the physical inventory at December $31.$ The periodic inventory system is used. Round average unit cost to the nearest cent and final answers to the nearest whole dollar, if required.

a$.$ Determine the inventory cost by the first$-$in$,$ first$-$out method.

$fill in the blank $1$

b$.$ Determine the inventory cost by the last$-$in$,$ first$-$out method.

$fill in the blank $2$

c$.$ Determine the inventory cost by the weighted average cost method.

$fill in the blank $3$