An orange contains about 80 milligrams of vitamin c, which is 10 times as much as an apple contains. write and solve an equation to find the amount of vitamin c in an apple.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.