PLEASE HELP

Look at the attached file below

Issof claims that the scale factor is 1/2. which statement about his claim is correct

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)

Which number line represents the solution set for the inequality -1/2x> 24?