To determine the number of gallons of gasoline Tricia can purchase with $30, we need to refer to the graph you mentioned. Since I don't have access to the graph itself, I can give you a general approach on how to find the answer:
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Read the Price Per Gallon: Look for the point on the graph where the total cost reaches $30. From this point, determine how many gallons correspond to that total cost.
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Identify the Axes: Typically, the x-axis (horizontal) represents the number of gallons, and the y-axis (vertical) represents the total cost. Make sure to confirm this based on your graph.
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Locate the Point: Find the point where the total cost is $30 and read down to see what the corresponding number of gallons is on the x-axis.
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State the Nearest Whole Number: After determining the number of gallons, round to the nearest whole number if necessary.
If you still have trouble understanding or if the graph is structured in a different way, feel free to describe it clearly, and I can assist you further!