Interest principal rate of interest time. A rule or fact written with mathematical symbols. A rule or equation describing the relationship of two or more variables or quantities eg.
Formula definition a set form of words as for stating or declaring something definitely or authoritatively for indicating procedure to be followed or for prescribed use on some ceremonial occasion.
Sales tax price of item tax rate. Which has these variables. It usually connects two or more quantities with an equal to sign. A formula lists the elements contained within it and indicates the number of atoms of each element with a subscript numeral if the number is more than 1.