Radars $-$ R $-$ Us manufactures radar systems. It has just completed the manufacture of its first newly designed system, RS$-32.$ Manufacturing data for the RS$-32$ follow:

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Requirement

Calculate the total variable costs of producing $2,4,$ and $8$ units.

Data table

Begin by calculating the cumulative total time in labor$-$hours using the cumulative average$-$time learning model. $($Round the cumulative average time per unit to the nearest whole number.$)$