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Point (x, y) has in which quadrant of the rectangular coordinate system shown above ？（）
(1)x+y＜0
(2)x=1 and y=-7

If it is 6:27 in the evening on a certain day, what time in the morning was it exactly 2,880, 717 minutes earlier ？（） (Assume standard time in one location．)

The markup on a television set is 20 percent of the cost. The markup is what percent of the selling price ？（） (mark up=selling price-cost)

Working independently, Tina can do a certain job in 12 hours. Working independently, Ann can do the same job in 9 hours. If Tina works independently at the job for 8 hours and then Ann works independently, how many hours will it take Ann to complete the remainder of the job ？（）

A total of 774 doctorates in mathematics were granted to United States citizens by American universities in the 1972～1973 school year, and W of these doctorates were granted to women. The total of such doctorates in the 1986～1987 school year was 362, and ω of these were granted to women. If the number of doctorates in mathematics granted to female citizens of the United States by American universities decreased from the 1972～1973 school year to the 1986～1987 school year, was the decrease less than 10 percent ？（）
(1)
(2)W=ω+5

Seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight; seed mixture Y is 25 percent ryegrass and 75 percent fescue. If a mixture of X and Y contains 30 percent ryegrass, what percent of the weight of this mixture is X ？（）

If  of the air in a tank is removed with each stroke of a vacuum pump, what fraction of the original amount of air has been removed after 4 strokes ？（）

Four cups of milk are to be poured into a 2-cup bottle and a 4-cup bottle. If each bottle is to be filled to the same fraction of its capacity, how many cups of milk should be poured into the 4-cup bottle ？（）

On a certain road, 10 percent of the motorists exceed the posted speed limit and receive speeding tickets, but 20 percent of the motorists who exceed the posted speed limit do not receive speeding tickets. What percent of the motorists on that road exceed the posted speed limit ？（）

Larry saves x dollars per month. Will Larry’s total savings one year from now exceed his present savings by at least $500 (Assume that there is no interest.)（）
(1)In 6 months Larry’s total savings will be $900.
(2)In 3 months Larry’s total savings will exceed his present savings by $150.

During the four years that Mrs. Lopez owned her car, she found that her total car expenses were $18,000. Fuel and maintenance costs accounted for  of the total and depreciation accounted for  of the remainder. The cost of insurance was 3 times the cost of financing, and together these two costs accounted for  of the total. If the only other expenses were taxes and license fees, then the cost of financing was how much more or less than the cost of taxes and license fees ？（）

Over the last three years a scientist had an average (arithmetic mean) yearly in come of $45,000. The scientist earned 1 times as much the second year as the first year and times as much the third year as the first year. What was the scientist’s income the second year ？（）

Laura borrowed $240, interest free, from her parents to pay for her college education. If she pays back percent of this amount quarterly, and has already paid $42.00, for how many months has she been paying back her loan ？（）

A shipment of banners contains banners of two different shapes, triangular and square, and two different colors, red and green. In a particular shipment 26%of the banners are square and 35% of the banners are red. If 60% of the red banners in the shipment are square, what is the ratio of red triangular banners to green triangular banners ？（）

In the diagram above, points A, B, C, D, and E represent the five teams in a certain league in which each team must play each of the other teams exactly once. The segments connecting pairs of points indicate that the two corresponding teams have already played their game. The arrows on the segments point to the teams that lost; the lack of an arrow on a segment indicates that the game ended in a tie. After all games have been played, which of the following could NOT be the percent of games played that ended in a tie ？（）

A certain shade of gray paint is obtained by mixing 3 parts of white paint with 5 parts of black paint. If 2 gallons of the mixture is needed and the individual colors can be purchased only in one-gallon or half gallon cans, what is the least amount of paint, in gallons, that must be purchased in order to measure out the portions needed for the mixture ？（）

Harry started a 6-mile hike with a full 10-cup canteen of water and finished the hike in 2 hours with 1 cup of water remaining in the canteen. If the canteen leaked at the rate of 1 cup per hour and Harry drank 3 cups of water during the last mile, how many cups did he drink per mil during the first 5 miles of the hike ？（）

If tank X contains only gasoline, how many kiloliters of gasoline are in tank X ？（）
(1)If   of the gasoline in tank X were pumped out the tank would be filled to of its capacity.
(2)If 0.75 kiloliter of gasoline were pumped into tank X, it would be filled to capacity.

In 1985 a company sold a brand of shoes to retailers for a fixed price per pair. In 1986 the number of pairs of the shoes that the company sold to retailers decreased by 20 percent, while the price per pair increased by 20 percent. If the company’s revenue from the sale of the shoes in 1986 was $3.0 million, what was the approximate revenue from the sale of the shoes in 1985 ？（）

In a mayoral election, Candidate X received more votes than candidate Y, and Candidate Y received fewer votes than Candidate Z. If Candidate Z received 24, 000 votes, how many votes did Candidate X receive ？（）

If taxi fares were $1.00 for the fist mile and $0.20 for each mile there after, then the taxi fare for a 3-mile ride was ？（）

A circular rim 28 inches in diameter rotates the same number of inches per second as a circular rim 35 inches in diameter. If the smaller rim makes x revolutions per second, how many revolutions per minute does the larger rim make in terms of x ？（）

Forty percent of the rats included in an experiment were male rats. If some of the rats died during the experiment and 30 percent of the rats that died were male rats, what was the ratio of the death rate among the male rats to the death rate among the female rats ？（）

Solution Y is 30 percent liquid X and 70 percent water. If 2 kilograms of water evaporate from 8 kilograms of solution Y and 2 kilograms of solution Y are added to the remaining 6 kilograms of liquid, what percent of this new solution is liquid X ？（）

Mr. Jones drove from Town A to Town B in x hours. On the return trip over the same route, his average speed was twice as fast. Which of the following expresses the total number of driving hours for the round trip ？（）

A, B, and C each drove 100-mile legs of a 300-mile course at speeds of 40, 50, and 60 miles per hour, respectively. What fraction of the total time did A drive ？（）

In a certain flower shop, which stocks four types of flower there are as many violets as carnation，and as many tulips as violets．If there are equal numbers of roses and tulips，what percent of the flowers in the shop are carnations ？（）

A milliner bought a lot of hats,   of which were brown. The milliner sold  of the hats including  of the brown hats. What fraction of the unsold hats were brown ？（）

A certain basketball team that has played of its games has a record of 17 wins and 3 losses. What is the greatest number of the remaining games that the team can lose and still win at leas of all of its games ？（）