Answer: The relationship between salary per week (s), number of weeks worked (w), and total income (t) is t = s * w.
Where t is the total income, s is the salary per week, and w is the number of weeks worked.
In Robert's case, s = $300, the equation would be t = $300 * w, where w is the number of weeks worked.
This equation shows that the total income (t) is directly proportional to the number of weeks worked (w) and the salary per week (s)
So, if Robert earns $300 every week, this equation would be t = $300 * w
Explanation: