Three identical units of merchandise were purchased during July, as follows:

Date Product Basic H Units Cost

July $3$ Purchase $1$ $$31$

$10$ Purchase $134$

$24$ Purchase $137$

Total $3$ $$102$

Average cost per unit $$34$

Assume one unit sells on July $28$ for $$48.$

Determine the gross profit, cost of goods sold, and ending inventory on July $31$ using the $($a$)$ first$-$in$,$ first$-$out, $($b$)$ last$-$in$,$ first$-$out, and $($c$)$ weighted average cost flow methods.

Line Item Description Gross Profit Cost of Goods Sold Ending Inventory

a$.$ First$-$in$,$ first$-$out $fill in the blank $1$

$fill in the blank $2$

$fill in the blank $3$

b$.$ Last$-$in$,$ first$-$out $fill in the blank $4$

$fill in the blank $5$

$fill in the blank $6$

c$.$ Weighted average $fill in the blank $7$

$fill in the blank $8$

$fill in the blank $9$