Mathematics, 09.12.2020 20:00 agm9801
Karen gets paid $15 a day plus $5 for every hour she works in her neighbor's yard. If she made $40 yesterday, how many hours did she work?
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If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)
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Karen gets paid $15 a day plus $5 for every hour she works in her neighbor's
yard. If she made $40...
Mathematics, 14.02.2020 16:34