(add. write your answer as a fraction, as a whole or as a mixed number) PLEASE HELP . WILL GIVE BRAINLIEST !

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.

If a and b are real numbers, then |a-b| is always, sometimes or never equal to |b-a| ?

Point j (-4,-6) and point k (4,4) are located on a coordinate grid. which measurement is closest to the distance between point j and point k in units