Problem $1.$ Given the input data to S&OP plan, answer the following questions:

$\backslash$table$[[,,,,,,,,],[$Month$,$Sales,$\backslash$table$[[$Labor$],[$hour$]],$Working,$\backslash$table$[[$labor$-$hour$],[$in$]],$Number of$,$Workers,Workers,$\backslash$table$[[$Labor$-],[$hour$]]],[,($Million$),(0005),$days,$(0005),$Workers,Hired,Fired,$(000$s$)],[,,,,1900,,,,],[$Jamuary$,8,,20,,,,,],[$March$,11\mathrm{.}2,,21,,,,,],[$April$,12,,23,,,,,],[$May$,9\mathrm{.}8,,22,,,,,],[$June$,8\mathrm{.}5,,22,,,,,],[$July$,9,,20,,,,,],[$August$,11\mathrm{.}6,,23,,,,,],[$September$,9\mathrm{.}4,,20,,,,,]]$