Each student got 1/4 because thats half of 1/2
After 150 miles, Beth will have used 150x 1/30 = 5 gallons, which leaves 10 gallons remaining in the tank.After 150 miles, Darcy will have used 150x 1/25 = 6 gallons, which leaves 10 gallons remaining in the tank. Meaning they will have the same number of gallons left at 150 miles
The answer is -4, hope this helped
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