Khan/khan-exercises — pull request #20875 by divad12 (2012-05-01 02:39:11+00:00)
Title: Make hint button descriptions a little clearer

...as motivated by our Power Mode deep dive notes (https://docs.google.com/a/khanacademy.org/document/d/1s6Nx4J38RD0dYs4VmxH9vEwiqMIgKm4edDFsP7KUwhI/edit)

@tomyedwab