1/4(3c+5)-1/2(2c+3)=1/2
show some work so i can fiqure it out.

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)

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.

Which phrase generalizes the specific terminology bolded in the text?