Weemow Lawn Service

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he Weemow Lawn Service wants to start doing snow removal in the winter when there
are no lawns to maintain. Jeff and Julie Weems, who own the service, are trying to
determine how much equipment they need to purchase, based on the various job types
they have. They plan to work themselves and hire some local college students on a per-
job basis. Based on historical weather data, they estimate that there will be six major
snowfalls next winter. Virtually all customers want their snow removed no more than 2
days after the snow stops falling. Working 10 hours per day (into the night), Jeff and Julie
can remove the snow from a normal driveway in about 1 hour, and it takes about 4 hours
to remove the snow from a business parking lot and sidewalk. The variable cost (mainly
for labor and gas) per job is $12 for a driveway and $47 for a parking lot. Using their lawn
service customer base as a guideline, they believe they will have demand of no more than
40 homeowners and 25 businesses. They plan to charge $35 for a home driveway and
$120 for a business parking lot, which is slightly less than the going rate. They want to
know how many jobs of each type will maximize their profit.
a. Formulate a linear programming model for this problem.
b. Solve this model graphicall

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