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In 1999, the ratio of the number of towels imported from China to the total number of towels imported from countries other than China was closest to which of the following?
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A list consists of 10 positive integers. The sum of the 10 integers is 101. If no integer appears more than twice in the list, what is the greatest possible integer that can appear in the list?
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For the frequency distribution of the variable x shown in the table above, what is the median value of x?
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It costs d dollars to buy t thumbtacks. At this rate, what is the cost of t+2,500 thumbtacks, in dollars?
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For a group of 9 steel beams stored together, the average (arithmetic mean) length of the beams is 7.2 meters and the median length is 8.4 meters. Two additional steel beams-one that is longer than all 9 beams and one that is shorter than all 9 beams-will be stored with the 9 beams. For the combined group of 11 steel beams, the average length is m meters and the median length is d meters. Which of the following statements must be true?
Indicate all such statements.
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Five different families received tax bills at the beginning of the year. Later, the four lowest tax bills were each reduced by $200 while the highest tax bill remained the same.
Quantity A:The standard deviation of the original five tax bills
Quantity B:The standard deviation of the resulting five tax bills after the four lowest tax bills were reduced
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The average (arithmetic mean) of m and n is 1 more than k
Quantity A:m+n
Quantity B:2k+1
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Quantity A：The perimeter of quadrilateral RSTW shown in the xy-plane
Quantity B：34
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x-y=1
Quantity A:$$x^{2}$$ - $$y^{2}$$
Quantity B:0
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a < 0
The operation △ is defined by $$n^{△}$$=$$(n-1)^{2}$$ for all numbers n.
Quantity A:$$\frac{(a+1)^{△}}{a^{2}}$$
Quantity B:1
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r is a positive integer, k=2r+1, and h=5k-3
Quantity A:The units digit of h
Quantity B:2
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a > 0
x≠0
Quantity A:$$ax^{4}$$
Quantity B:$$(ax)^{4}$$
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In a survey, employees who want to switch jobs were asked what issues were most important in choosing another job. Half of those surveyed said "salary" and 35% said "location". If 32 percent of those surveyed said both "salary" and "location", what percent said either "salary" or "location" but not both?
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The larger of two right circular cylindrical containers has an inside radius of 3 inches, and the smaller has an inside radius of 1.5 inches; each of the containers has an inside height of 10 inches. If the smaller container were filled with water until the depth of the water was 9 inches, and then its water were poured into the empty larger container, what would be the depth of the water, in inches, in the larger container?
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If an integer is chosen at random from the integers between 101 and 550, inclusive, what is the probability that the chosen integer will begin with the digit 1, 2 or 3, and end with the digit 4, 5, or 6?
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A customer purchased n items at Store F. If 5 of the n items cost $7 each and the remaining items cost $9 each, then in terms of n, what was the total cost, in dollars, of the items purchased by the customer at Store F?
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If r and t are each positive integers less than 10, how many different ordered pairs (r, t) exist such that 7r+7t is a square of an integer?
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For how many of the five vehicle types is the number of silver vehicles less than 20 percent of the total number of vehicles of that type?
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