don't blame it on me, I've always had trouble with spacial stuff, 
algerbra,   If A = B and B = C  and you add them all up what is the answer, that does not add up for me

welp,  I'm sorry  a rock is not a tree, an apple is not a grape, water is not an air, two trees don't add up to for rock's I can't conceptuilize the conceptes that they want me to compute or think about