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题目： At the end of each year, the value of a certain antique watch is c percent more than its value one year earlier, where c has the same value each year. If the value of the watch was k dollars on January1, 1992, and m dollars on January 1, 1994, then in terms of m and k, what was the value of the watch, in dollars, on January 1, 1995 ?

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题目： If $$\frac {0.5} {\frac1 6}=\frac1 x$$, what is the value of x ?

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题目： If $$x \ge 0$$ and $${x}=\sqrt{8xy-16y^2}$$ , then, in terms of y, x =

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题目： what is 35 percent of the sum of 1.4 and $$\frac{1}{5}$$?

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题目： Is it true that a > b?(1)2a>2b(2)a + c> b + c

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题目： Which of the following fractions has the greatest value?

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题目： How many 4-digit positive integers are there in which all 4 digits are even?

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题目： $${4}^{3}+{4}^{3}+{4}^{3}+{4}^{3}$$ =

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题目： If each of the 8 employees working on a certain project received an award, was the amount of each award the same?(1)The standard deviation of the amounts of the 8 awards was 0.(2)The total amount of the 8 awards was $10,000.

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题目： The toll for crossing a certain bridge is $0.75 each crossing. Drivers who frequently use the bridge may instead purchase a sticker each month for $13.00 and then pay only $0.30 each crossing during that month. If a particular driver will cross the bridge twice on each of x days next month and will not cross the bridge on any other day, what is the least value of x for which this driver can save money by using the sticker?

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题目： If $$x \neq 0$$, what is the value of $$\frac{\mid{x}\mid}{x}$$?(1)$$x > 0$$(2) x = 5

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题目： In parts of the Caribbean, the manatee, an endangered marine mammal, has long been hunted for its meat. Having noted the manatee hunters' expert knowledge of manatees' habits, local conservationists are encouraging the hunters to stop hunting and instead to take tourists on boat rides to see manatees. Tourist interest is high, so the plan has promise of achieving the twin goals of giving the former hunters a good income and helping ensure the manatees' survival.Which of the following, if true, raises the most serious doubt about the plan's chance of success?

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题目： Some batches of polio vaccine used around 1960 were contaminated with SV40, a virus that in monkeys causes various cancers. Some researchers now claim that this contamination caused some cases of a certain cancer in humans, mesothelioma. This claim is not undercut by the fact that a very careful survey made in the 1960s of people who had received the contaminated vaccine found no elevated incidence of any cancer, since___________.

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题目： Researcher: Soils are adversely affected by road salts used to melt ice and snow, particularly along roadsides and salt storage areas. Soil samples were collected from highway medians and in salt storage yards. These samples showed chloride levels 11-160 times the level sufficient to inhibit bacteria growth in soil. Inhibited bacterial growth in soil greatly inhibits plant growth in that soil.An agricultural official would like to use the researcher's result to support the argument that sand, rather than road salts, should be used as a winter road treatment, thereby eliminating the need for salt yards. Select the additional information that, if true, would most strengthen the official's case and select the additional information that, if true, would most weaken the official's case. Make only two selections, one in each column.

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题目： Consider each of the following statements. Does the information in the three emails support the inference as stated?