XYZ Corporation incurred the following costs in producing replacement auto parts. With respect to the production and sale of these auto parts, classify each cost as variable, fixed, or mixed.

Cost of labor for hourly workers

Factory cleaning costs

Hourly wages of machine operators

Computer chip purchased from a vendor

Electricity costs, $0.20 per kilowatt-hour

Metal

Salary of a plant manager

Property taxes of $165,000 per year on factory building and equipment

Plastic

Oil used in manufacturing equipment

Rent on warehouse, $10,000 per month plus $25 per square foot of storage used

Property insurance premiums, $3,600 per month plus $0.01 for each dollar of property over $1,200,000

Straight-line depreciation on the production equipment

Pension cost, $1.00 per employee hour on the job

Packaging

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