A natural monopoly exists when Group of answer choices unit costs are minimized by having one firm produce an industry's entire output. several formerly competing producers merge to become the only firm in an industry. short-run average total cost curves are tangent to long-run average total cost curves. minimum efficient scale is attained at a small level of output.

Which of the following statements about revision is most accurate? (a) you must compose first drafts quickly (sprint writing) and return later for editing. (b) careful writers always revise as they write. (c) revision is required for only long and complex business documents. (d) some business writers prefer to compose first drafts quickly and revise later; others prefer to revise as they go.

In transportation model analysis, the stepping-stone method is used to: a. obtain an initial feasible solutionb. evaluate empty cells for possible degeneracyc. evaluate empty cells for potential solution improvementsd. identify a dummy origin pointe. balance supply and demand

The gorman group is a financial planning services firm owned and operated by nicole gorman. as of october 31, 2016, the end of the fiscal year, the accountant for the gorman group prepared an end-of-period spreadsheet, part of which follows: