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[Makdaddy]

Hi there,
I have a graphics calculator, a CASIO fx-9860G AU, and I was wondering if it was possible, since it can solve formulas, that it can change the subject of a letter in a formula? For example,

V = 4/3πR^3

How would I, using the graphics calculator, make R the subject in this formula? I have a Casio fx-9860G AU. Oh and one more question, is there a percent button on there?

Thanks!