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In each of the following independent cases determine Mei-ling's filing status.
a.Mei-ling's husband died in 2016.She maintains a household for her unmarried son during 2017,who did not qualify as her dependent.
b.Mei-ling is unmarried and lives in an apartment.Mei-ling's parents do not live with her.She is not able to claim them as dependents for 2017.
Average Costs
The total cost of production divided by the quantity produced, often used to evaluate production efficiency.
Fixed Costs
Costs that remain constant regardless of the level of production or sales activities, such as rent, salaries, and insurance premiums.
Marginal Costs
Marginal costs represent the change in total production cost that arises when the quantity produced is incremented by one unit, essentially the cost of producing one additional unit of a good.
Marginal Productivity
Marginal productivity is the additional output that is produced by using one more unit of a certain input, assuming that all other inputs remain constant.
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