Tankao makes Bluetooth headphones for mobile devices.When 50 Bluetooth headphones are produced in the short run,the average variable cost is $30.Fixed costs are greater than zero.Therefore,Tankao's average _____ cost is _____.

A) total;$30.
B) total;greater than $30.
C) total;less than $30.
D) fixed;$30.

Successful entrepreneurs seek power and control over others.

The ________ requires a public company to disclose whether it has adopted a code of ethics for senior financial officers,and to disclose any change in the code or waiver of the code's application.

A) Davis-Bacon Act
B) Goldwater-Nichols Act
C) Sarbanes-Oxley Act
D) Certiorari Act

Profit margin can be decomposed into its individual factors including COGS/Sales and Taxes/Sales.

Proposals are informative documents used to educate readers.

Margin requirements are set by

A) the forces of supply and demand.
B) the head officials of the New York Stock Exchange.
C) the U.S.Treasury.
D) the Federal Reserve.