Lena is driving on the highway. She begins the trip with 16 gallons of gas in her car. The car uses up one gallon of gas every 20 miles. Let G represent the number of gallons of gas she has left in her tank, and let D represent the total distance (in miles) she has traveled. Write an equation relating G to D, and then graph your equation using the axes below. 18 16 14+ 12+ Equation: ローロ 10 15 30 45 60 75 90 105 120

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