Your On-Line Bookstore Is in Direct Competition with Amazon

question 70

Multiple Choice

Your on-line bookstore is in direct competition with Amazon.com, BN.com, and Borders.com. Your company s daily revenue in dollars is given by where x , y , and z are the online daily revenues of Amazon.com, BN.com, and Borders.com, respectively. If Amazon.com and BN.com each show a daily revenue of $9,000, give an equation showing how your daily revenue depends on that of Borders.com.

• A)R ( z )= 30,000 - 180 x - 90 y - 0.01 z + 0.0001 yz
• B)R ( z )= 30,000 - 0.01 z
• C)R ( z )= 29,730 + 0.89 z
• D)R ( z )= 30,000 - 0.01 z + 0.0001 z
• E)R ( z )= 29,730

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