PLEASE, help me with my math!

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I am not good at math at all! Would someone please help me with this problem!? I am a sophmore in college and still hate geometry. I am going to give you a link to it: http://www.mediafire.com/?mwmetifoozk If it says it can't be displayed please refresh your browser. I would really appreciate your help! Thank you so much! Have a great week!