Borges Machine Shop, Inc., has a $1-$year contract for the production of $250,000$ gear housings for a new off$-$road vehicle. Owner Luis Borges hopes the contract

will be extended and the volume increased next year. Borges has developed costs for three alternatives. They are general$-$purpose equipment $($GPE$),$ flexible

manufacturing system $($FMS$),$ and expensive, but efficient, dedicated machine $($DM$).$ The cost data follow:

The option GPE is best when the contracted volume is below

The option FMS is best when the contracted volume is between

The option DM is best when the contracted volume is over

units $($enter your response as a whole number$).$

and

units $($enter your responses as whole numbers$).$

units $($enter your response as a whole number$).$