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What is the value of a – 2?(1) a – 2 > 1(2) a + 2 = 6
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120% of $$\frac{5}{8} =$$
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The invention of the cotton gin, being one of the most significant developments of the nineteenth century, had turned cotton cloth into an affordable commodity; it was costly before that.
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The new heart scans offer patients significant benefits. They can be completed in a fraction of the time required for an angiogram, with no recovery time necessary. Furthermore, the scans are more sensitive and can identify problem areas that an angiogram might not perceive. However, heart scans use more radiation than most diagnostic procedures, and can cause undue concern over and treatment for the harmless abnormalities often picked up by such sensitive technology.
Which of the following conclusions is best supported by the statements above?
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Which of the following best describes the main idea of the passage?
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On a fishing excursion, Jeannie keeps$$\frac{ 1}{4}$$ of the fish she catches and releases the remainder of the fish back into the lake. If $$\frac{2}{3}$$ of the fish she keeps are trout, and 1/3 of the fish she releases are trout, what proportion of the total number of fish she catches are trout?
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Is Fred taller than Wilma? (1) Fred is taller than Barney. (2) Wilma is taller than Betty, who is taller than Barney.
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Critics fear that the decline in what constitutes a good secondary school education have weakened this country's standing in the world.
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Scientist: All other things being equal, the intensity of heat increases as the distance from the heat source decreases. Knowing this, most people conclude that the Earth’s seasons are caused by the Earth’s changing distance from the sun. In other words, winter occurs when the Earth is far from the sun, and summer occurs when the earth is close to the sun. However, we know that as North America experiences summer, South America experiences winter, even though the difference in the continents' distance to the sun is negligible. Therefore, the earth’s changing distance from the sun does not cause the seasons.
In the argument, the two portions in boldface play which of the following roles?
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The author mentions that nutmeg became a luxury item in the European market in order to
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If |a| = |b|, which of the following must be true? I. a = b II. |a| = -b III. -a = -b
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Is x + y > z ?(1) z > y(2) z > x
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The declining number of graduate students majoring in engineering has resulted in less skilled engineers qualified to work in modern industries that have become increasingly high-tech.
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To decrease the number of crimes in city Y, the city's Police Commissioner proposed taking some police officers from low-crime districts of the city and moving them to high-crime districts of the city. His proposal is based on city Y crime data that show that the number of crimes in any district of the city decreases when additional police officers are moved into that district.The Police Commissioner's proposal depends on which of the following assumptions?
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Which of the following is mentioned in the passage as a reason for the initial interest of the Netherlands in the Banda Islands?
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Janet is now 25 years younger than her mother Carol. If in 6 years Janet's age will be half Carol’s age, how old was Janet 5 years ago?
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In the month of June, a street vendor sold 10% more hot dogs than he sold in the month of May. How many total hot dogs did the vendor sell in May and June combined? (1) The vendor sold 27 more hot dogs in June than in May.(2) The vendor sold 50% more hot dogs in May than he did in April, when he sold 180 hot dogs.
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Scientists studying the region are divided over how much of the temperature shift is due to the region's large natural variations and how much is being driven by the global buildup of carbon dioxide and other heat-trapping greenhouse gases, like those emitted by tailpipes.
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Most water companies in the United States add fluoride to tap water to help prevent cavities. Some dentists argue, however, that this practice actually causes more harm than good because people overestimate the protection afforded by the fluoride and do not take the proper steps to care for their teeth, such as brushing and flossing after every meal. If water companies did not add fluoride, the dentists claim, people would be forced to be more active in their dental hygiene and tooth decay would decline as a result.Which of the following, if true, most weakens the dentists' claims?
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For what purpose does the author include the second paragraph?
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