Refer to the data provided in Table $10\mathrm{.}1$ below to answer the following questions.

Table $10\mathrm{.}1$

$\backslash$table$[[\backslash$table$[[$Total Labor Units$],[($employees$)]],\backslash$table$[[$Total Product$],[($T$-$shirts per day$)]],\backslash$table$[[$Marginal Product of Price per$],[$Labor $($per day$)]],$T$-$shirt$],[0,0,-,-],[1,20,20,$$$5$