Divide x^3 - x - 6 by x - 2

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)

Pls brainliest will be awarded if answer is correct

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1