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题目： What is the value of the integer n?(1)$$n(n + 2) = 15$$(2)$$({n}+{2})^{n}={125}$$

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题目： If Ann saves x dollars each week and Beth saves y dollars each week, what is the total amount that they save per week?(1)Beth saves $5 more per week than Ann saves per week.(2)It takes Ann 6 weeks to save the same amount that Beth saves in 5 weeks.

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题目： If –4 < x < 7 and –6 < y < 3, which of the following specifies all the possible values of xy?

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题目： If r, s, and w are positive numbers such that w = 60r + 80s and r + s = 1, is w < 70?(1)r > 0.5(2)r > s

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题目： In ΔPQR above, what is the value of y?(1) (3/2)x = 120(2) x + y = 100

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题目： If f is the function defined for all k by f(k) = $$\frac{k^5}{16}$$, what is f(2k) in terms of f(k)?

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题目： If $5,000 invested for one year at p percent simple annual interest yields $500, what amount must be invested at k percent simple annual interest for one year to yield the same number of dollars?(1) k = 0.8p(2) k = 8

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题目： The researchers` conclusion concerning the absence of demographic bias would be most seriously undermined if it were found that

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题目： It can be inferred from the passage that the minimal basis for a complaint to the International Trade Commission is which of the following?

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题目： The passage warns of which of the following dangers?

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题目： It can be inferred from the passage that the author believes which of the following about the complaint mentioned in the last paragraph?

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题目： A train traveled from station X to station Y at a constant speed of 88 feet per second. Is the distance that the train traveled from station X to Station Y greater than 40 miles? (1 mile = 5,280 feet)(1) It took less than 45 minutes for the train to travel from station X to Station Y.(2) It took more than 42 minutes for the train to travel from station X to Station Y.

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题目： The author implies that one way that VHS producers won control over the VCR market was by

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题目： Which of the following best describes the relation of the first paragraph to the passage as a whole?

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题目： The passage suggests which of the following about the majority of United States manufacturing industries before the high-technology development era of the 1980s?