Find all (a) minors and (b) cofactors of the matrix 
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Definitions:
Antimacassars
Protective coverings placed over the back or arms of furniture to prevent dirt or wear, often made of lace or embroidered fabric.
Labor Supply Curve
A graphical representation showing the relationship between the wage rate and the quantity of labor workers are willing to provide.
Marginal Cost
The change in total cost that arises when the quantity produced is incremented by one unit, essentially the cost of producing one more unit of a good.
Weekly Wage
The total amount of money paid to an employee for work done in a single week.
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