How many people are bored, when 50+3509408 people are locked in thier houses in quaratine?

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)

What is the range? can’t seem to find it out

Give me the equations of two lines that have the same slope but are not parallel.