How do you reduce 4 6/21 as a fraction

Determine whether the angles in each given pair are coterminal. 744°, -336°

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Use set buikder notation to represent the following set: {, -2, -1, 0}