Asurvey was held to find the time taken by students to reach school from their homes. each student was asked to choose from 10, 20, 30, 40, or 50 minutes. what is the mode for the data set? a. 30 min. b. 10 min. c. 20 min. d. 40 min.

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The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c

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)