- Please help simplify! ((7x^-3 y^-2)/(21x^6 y^-8))^-2?

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What is the chemical formula for road salt? How much resistance and tolerance does a resistor that has the color bands red, violet, orange, gold have? Show your calculation.? Suppose that 273g of the substances listed above displaces 26ml of water. What is the substance? Hallar la ecuaciĆ³n de la recta que cumple condiciones dadas: pasa por (-3,4) y es perpendicular a la recta y=3x+2? Find the real zeros of f(x)=1/3x^2+1/3x-2/3....?