Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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A cell phone company dropped the prices on their phones by 9%. Which expression shows the NEW PRICE of the phone, p?
A. p x 0.09p
B. p - 1.09p
C. p - 0.09p
D. p - 0.09
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