What is the simplified form of 12x√900x²y∧4z∧6? 30y2|xz3| 30x2y2z4 360xy2|xz3| 360xy2|z3|

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)

If you could answer these your a life saver

2x minus y equals 6, x plus y equals negative 3