Sarah works 40 hours per week and earns $660 which graph shows the unit rate for this situation?

Since Sarah works 40 hours per week and earns $660, the unit rate for this situation is $660/40 hours = $16.50 per hour.

The graph that shows the unit rate for this situation would be a graph with the x-axis representing the number of hours worked and the y-axis representing the amount earned. The slope of the graph would be the unit rate of $16.50 per hour.