What is the percent decrease from 40 to 25

Volume of cylinder with a radius of 8cm and height of 25 cm

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

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)