20 of the cats at the pet store are white, which is 25% of all of the cats. How many cats are there at the pet store?

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.

Write a corresponding real world problem to represent 2x - 125=400

Which two undefined geometric terms always describe figures with no beginning or end?