Khan/khan-exercises — pull request #24951 by Christi (2012-06-26 22:22:08+00:00)
Title: added degrees or "x=" to answer form on 16 exercises, also cleaned up hints on 1: fix #24889; fix #15290; fix #24748; fix #24565; fix #24630

#14748, #13832, #13822, #14747, #13044 look like the can also be closed... these look like problems before answer type degrees was removed.