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What is the mass (in grams) of 9.42 × 1024 molecules of methanol (CH3OH)? Show that the expression (x+y)(x-y)-16x+64 may be written as the difference of two squares, and then factor the expression.? Are the motion of galaxies relative to the same radius to the gravity center of mass of the Physical Universe with same frequency? What is 7/20 divided by 5/6 I need to reduce my problem to the lowest amount? How many kilometers in a meter?