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Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

Solve 3x-18=2y and 5x-6y=6 by elimination show work