A mathematical proof is a sequence of statements ... If \(n\) is an integer (a whole number), then the expression \(2n\) represents an even number, because even numbers are the multiples of ...

A string of numbers and letters joined together by mathematical operations such as \(+\) and \(-\) is called an algebraic expression, for example \(r + 2s\). Suppose that \({g}\) is the cost of ...