Two trains leave stations 300300 miles apart on parallel tracks one hundred feet apart (the first track is one hundred feet north of the second track). the trains travel toward each other, one going east, the other west, and each traveling at 7171 miles per hour. how fast is the distance between the trains changing just as they pass each other?

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.