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해법
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The 지역 of a rectangle is 72 square inches. The rectangle is 9 inches long.:How wide is the rectangle?The 지역 of a triangle is 48m^2. If the base is 8m, what is the height of the triangle?The 차이 of twice a number and 6 is at least 24The 차이 of 5 and a number is 3.2 more than two times the numberalana is 2 years younger than tommy and the sum of their ages is 16. how old is alana