Solve.3x = 81
A. {5}
B. {4}
C. {27}
D. {3}
Answer: B
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A. 12 B. 10 C. 8 D. 6
A firm following a cost leadership strategy would invest heavily in product R&D.
Answer the following statement true (T) or false (F)
When both copying machines A and B are working, secretaries can make 91 copies in one minute. In one minute's time, copiers A and C together produce 85 copies, and all three working together produce 127 copies. How many copies per minute can each machine produce separately? ? Select the correct answer. (a, b, c are the productivity of the A, B, and C machines). ?
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