The ratio of sales to invested assets, which is also a factor in the DuPont formula for determining the return on investment (ROI) , is called

A) profit margin
B) indirect margin
C) investment turnover
D) cost ratio

In which oligopoly model(s) do firms earn zero profit?

A) Cournot
B) Bertrand
C) Stackelberg
D) Oligopoly firms always earn positive economic profits.

Identify the voice in the following sentence: Mary wrote the report.

A) Active
B) Imperative or vocative
C) Passive
D) State of being

Overhead includes labor costs of assembly line supervisors but not the assembly workers.

Producer surplus is the difference between the most a person is willing to pay and market price.

The _____ is the pane of the Johari Window that can include childhood memories that people block out for various reasons.