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OpenStudy (anonymous):
Which of the following represents the area of a rectangle whose length is 4x + 5 and whose width is x + 4? a. 4x^2 + 20 b. 4x^2 + 20x + 21 c. 4x^2 + 21x + 20 d. 4x^2 + 20x + 20
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OpenStudy (anonymous):
C
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