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Compute the total number of board foot in the given lumber whose dimensions are as follows: 1.5pcs 2"×2"×8' lumber 2.6pcs 2"×3"×10' lumber 3.7pcs 2"×4"×12' lumber 4.8pcs 3"×4"×10' lumber 5.9pcs 4"×4"×10' lumber​