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题目： A certain one-day seminar consisted of a morning session and an afternoon session. If each of the 128 people attending the seminar attended at least one of the two sessions, how many of the people attended the morning session only?(1) $$\frac{3}{4}$$ of the people attended both sessions.(2) $$\frac{7}{8}$$ of the people attended the afternoon session.

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题目： In the formula $$V =\frac{1}{(2r)^3}$$,if r is halved, then V is multiplied by

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题目： The operation* represents either addition, subtraction, or multiplication of integers, what is the value of 1*0?(1) 0*2=2(2) 2*0=2

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题目： If $$0\le x\le 4$$ and y< 12, which of the following CANNOT be the value of xy?

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题目： Diana bought a stereo for $530, which was the retail price plus a 6 percent sales tax. How much money could she have saved if she had bought the stereo at the same retail price in a neighboring state where she would have paid a sales tax of 5 percent?

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题目： A can manufacturing company has 5 identical machines, each of which produces cans at the same constant rate. How many cans will all 5 machines produce running simultaneously for z hours?(1)Running simultaneously, 3 of the machines produce 72,000 cans in 2z hours.(2)Running simultaneously, 2 of the machines produce 24,000 cans in z hours.

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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： 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.