E. SUPPOSE THAT THE LENGTH OF THE RECTANGLE IS 10 AND THE WIDTH IS...

1. e. Suppose that the length of the rectangle is 10 and the width is 5. The area of this rectangle would beA lw10 ×5 50. If both the length and width are tripled, then the new length is 10 ×3 30 andthe new width is 5 ×3 15. The new area would be A lw30 ×15 450; 450 is nine times largerthan 50. Therefore, the answer is e.

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