What is the equation when y varies jointly with the fourth root of a and the square of b and inversely with the cube of c

I need help writing the equation describing the relationship of the given variables.

y varies jointly with the fourth root of a and the square of b and inversely with the cube of c, when a=81 and b=7 and c=3 , y=49

Isidro L. answered • 06/30/19

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