Required information

$[$The following information applies to the questions displayed below.$]$

The following information pertains to Mason Company for $2016$:

Ending inventory consisted of $30$ units. Mason sold $370$ units at $$90$ each. All purchases

and sales were made with cash. Operating expenses amounted to $$4,100.$

Required

a$.$ Compute the gross margin for Mason Company using the following cost flow

assumptions: $(1)$ FIFO, $(2)$ LIFO, and $(3)$ weighted average. $($Round cost per unit to $3$

decimal places and final answers to the nearest whole dollar amount.$)$

b$.$ What Is the amount of net income using FIFO, LIFO, and weighted average? $($Ignore

income tax considerations.$)($Round cost per unit to $3$ decimal places and final

answers to the nearest whole dollar amount.$)$

c$.$ Compute the amount of ending inventory using $(1)$ FIFO, $(2)$ LIFO, and $(3)$ weighted

average. $($Round cost per unit to $3$ decimal places and final answers to the nearest

whole dollar amount.$)$