About the Author Erik Klass, owner and founder of KlassTutoring, grew up in Westchester, CA. He studied Mechanical and Manufacturing Engineering at the University of California, Los Angeles, where he holds a Masters in Engineering. He also has a degree in music from Berklee College of Music in Boston, MA. Read more
Posted by Anastasia J G
wtffff i do not understand this!
Posted by Cristian
so many fake sites. this is the first one which worked! Many thanks
Posted by John Macciva
lol it did not even take me 5 minutes at all! XD