- How do I solve 4^(x-7)=1/256?

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Hallar la ecuación de la recta que cumple condiciones dadas: pasa por (-3,4) y es perpendicular a la recta y=3x+2? The least common multiple of 2 numbers is 60. One of the numbers is 7 less than the other. What are the numbers? Determine whether the function f(x)=1/x is a one to one? Find the real zeros of f(x)=1/3x^2+1/3x-2/3....? Name a River that begins with the letter K?