Find the inverse of the relation {(1,1), (-1,1), (2,4), (-2,4)}. is the inverse still a function?

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.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?