Ella is 6 years younger than Amanda. Zoe is twice as old as Amanda. The total of their ages is 54. Which equation can be used to find Amanda's age?
A.) x + (x  6) + 2(x  6) = 54 B.) x  6x + (x + 2) = 54 C.) x  6 + 2x = 54 D.) x + (x  6) + 2x = 54 E.) 2(x + 6) + (x + 6) + x = 54
(2  x²)(3x + 1) is equivalent to:
A.) 6x  x²  3x³ B.) 2  x²  3x³ C.) 2 + 6x  4x² D.) 2 + 6x + x²  3x³ E.) 2 + 6x  x²  3x³ 
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