KennedyMcmullen363
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KennedyMcmullen363 (Talk | contribs)
(Created page with 'Variable costs are expenses that change in proportion to the activity of a business. [http://variablecost.eu/ Variable cost] is the sum of marginal costs over all units produced.…')
(Created page with 'Variable costs are expenses that change in proportion to the activity of a business. [http://variablecost.eu/ Variable cost] is the sum of marginal costs over all units produced.…')
