Tennis balls and tennis rackets are complements. If a 3 percent change in the price of a tennis racket leads to a 9 percent change in the quantity of tennis balls demanded, the cross elasticity of demand equals
A.
3
B.
-3
C.
1/3
D.
-1/3
E.
9
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【单选题】During project closure a project sponsor complains that the project did not increase the department's knowledge of Java programming and therefore, the project is not complete . The customer has accept...
A.
begin project closure .
B.
re-plan the project to include the new objective .
C.
meet with the team to discuss the find a resolution .
D.
get the project stakeholders involved to help resolve the issue .
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