PLEASE HELP
In two or three sentences, explain how you would simplify the following expression where both x and y are positive:
√x^5y^2/√16x^9

Volume of a cylinder with a radius of 13 in and height of 30 in

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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)