To accurately determine how much Amanda will make if she babysits for 10 hours, I would need to see the graph you are referring to. Since I can't see the graph, I can’t provide a specific answer based on it.
However, if you could describe the relationship shown in the graph (for example, if there is a consistent hourly rate or any plateaus), I may be able to help you estimate her earnings for 10 hours of babysitting.