Which has these variables. A general fact or rule expressed in letters and symbols. X35 is not a formula it has only one variable x.
A Formula is an expression or equation that expresses the relationship between certain quantities.
A list of the ingredients used for making something such as a medicine or a drink mathematics. Area confuses a lot of people because the area is measured in square units regardless of shape. It usually connects two or more quantities with an equal to sign. Discount rate discount list price.