To answer the question accurately, I would need to see the graph mentioned. If you can provide the specific details or values from the graph regarding how much Amanda earns per hour or the total amount for certain hours, I can help predict how much she would make for seven hours of watching her cousins.
Without that information, I can’t provide an accurate prediction. Generally, you can find the amount for seven hours by either looking at the graph directly or calculating based on her hourly rate, if that’s indicated. Please provide further details to assist you better!