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题目： If p is the perimeter of rectangle Q, what is the value of p ?(1) Each diagonal of rectangle Q has length 10.(2) The area of rectangle Q is 48.

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题目： If a real estate agent received a commission of 6 percent of the selling price of a certain house,what was the selling price of the house?(1)The selling price minus the real estate agent's commission was $84,600.(2)The selling price was 250 percent of the agent purchase price of $36,000.

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题目： If $${R}=\frac{P}{Q}$$ , is $$R\le P$$ ? (1) $$P > 50$$ (2) $$0 < Q \le 20$$

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题目： Which of the following is equal to $$[\frac{1}{\sqrt3-\sqrt{2}}]^{2}$$?

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题目： If a positive integer n is divisible by both 5 and 7, then n must also be divisible by which of the following?I 12II 35III 70

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Because of a similarity to dance, synchronized swimming-exhibition swimming in which the movements of one or more swimmers synchronize to a musical accompaniment-is sometimes called water ballet, especially in theatrical situations.

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While studying the genetic makeup of corn, a new class of mutant genes was discovered by Barbara McClintock, a discovery which led to greater understanding of cell differentiation.

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For the first time in the modern era, non-Hispanic Whites are officially a minority in California, which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago.

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Unlike human runners, who broke the four-minute mile in 1954 and they consistently recorded faster times ever since, horses in classic races such as the Kentucky Derby have had winning times with little improvement: Secretariat's world-record-breaking Derby tine of 1:59 2/5, for example, was set in 1973 and remained unsurpassed more than a quarter of a century later.

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The first two albums released by the Isley Brothers, an African-American musical group, pictured white people on their covers, because record executives assumed that white consumers would not purchase albums with pictures of African-American artists on them.

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The earliest English settlers in Virginia failed to survive their first winter in the New World because of factors such as inadequate food supplies, harsh weather, and an inability to communicate with Native Americans.

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The demonstrations in Paris was marred by clashes between police officers and bottle-throwing gangs of youths.

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Though most paper currency was at one time backed by fixed assets such as gold or silver, it now derives its purchasing power from a declaratory fiat of the issuing government.

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Created in 1731, the original thermometer by Anders Celsius had a scale where the value of 0 corresponded to the boiling point of water; after he died in 1744 the scale was reversed to its present form.

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The city has proposed a number of water treatment and conservation projects the cost of which raises water bills high enough so that even environmentalists are beginning to raise alarms.