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해법
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The combined 용량 of two identical cubes is 128 cubic centimeters. What is the side length of each cube?the 지역 of a rectangular window is 4661 cm^2. if the length of the window is 79 cm, what is its widthThe product of two consecutive pages numbers is 420The product of a number and 5 is 60.At present, Therese is twice as old as Ralph. A year ago, the sum of their ages is 37. How old is Ralph now?