Chapter 1 - Section 1.1 - Introduction to Algebra: Variables and Mathematical Models - Exercise Set - Page 13: 107

$s=20h,$ where $s$ is salary and $h$ is hours worked

In the given table, let $h$ be the number of hours worked and $s$ be the salary. Then a formula that will fit the given data is \begin{array}{l}\require{cancel} s=20h .\end{array}