3/4 = ?/24
what goes in the question mark? to make the fractions equivalent

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)

What is the ratio of the length of an object in yards to the length of the same object in miles?

Solve for x where 0 equation: cot^2x+2cotx+1=0