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

Jan. $1$ Inventory $5$ units @ $$43$

Feb. $17$ Purchase $20$ units @ $$44$

July $21$ Purchase $8$ units @ $$45$

Nov. $23$ Purchase $11$ units @ $$46$

There are $5$ units of the item in the physical inventory at December $31.$ The periodic inventory system is used.

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. Round average unit cost to the nearest cent and final answers to the nearest whole dollar, if required.

$fill in the blank $3$