the amonut of gasoline at a gas station changes from 58,432.4 gal to 56,475.2 gal from 2:00 PM to 4:00 PM. What rational number represents the change in amount of gasoline per hour?

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.