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Introduction of checks into the payments system reduced the costs of exchanging goods and services. Another advantage of checks is that
Variable Cost
Costs that vary in direct proportion to changes in levels of production or business activity, such as materials and labor.
Fixed Cost
A cost that does not change with the volume of sales.
Fixed Costs
Expenses that do not change in proportion to the activity of a business, such as rent, salaries, and loan payments.
Variable Costs
Costs that vary directly with the level of production or sales, such as materials and labor.
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