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1.cho hình chữ nhật abcd . Trên cạnh bc lấy điểm m sao cho bm = mc . Biết diện tích của hình tam giác abc là 350m2 . Tính diện tích hình thằng amcd 2.bác Huệ có 100 quả trứng gà mang ra chợ bán . Ngày thứ nhất bác bán được 1 phần 5 số trứng đó . Ngày thứ hai và ngày thứ ba thì hết số trứng còn lại A)hỏi ngày thứ nhất bán được bao nhiêu quả trứng gà B)biết rằng 1 phần 2 số quả trứng gà bán được trong ngày thứ hai bằng 1 phần 3 số quả trứng gà trong ngày thứ 3 . Hỏi ngày thứ 2 và ngày thứ 3 bác Huệ bán được bao nhiêu quả trứng ?

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions People think children should play sports. Sports are fun, and playing with others. However, playing sports can have negative effects on children. It may produce feelings of poor self-respect or aggressive behavior in some children. According to research on kids and sports, 40,000,000 kids play sports in the US. Of these, 18,000,000 say they have been yelled at or called names while playing sports. This leaves many children with a bad impression of sports. They think sports are just too aggressive. Many researchers believe adults, especially parents and coaches, are the main cause of too much aggression in children's sports. They believe children copy aggressive adult behavior. This behavior is then further strengthened through both positive and negative feedback. Parents and coaches are powerful teachers because children usually look up to them. Often these adults behave aggressively themselves, sending children the message that winning is everything. At children's sporting events, parents may yell insults at other players or cheer when their child behaves aggressively. As well, children may be taught that hurting other players is acceptable or are pushed to continue playing even when they are injured. In addition, the media makes violence seem exciting. Children watch adult sports games and see violent behavior replayed over and over on television. As a society, we really need to face up to this problem and do something about it. Parents and coaches should act as better examples for children. They also need to teach children better values. They should teach children to enjoy themselves whether they win or not. It's not necessary to knock yourself out to enjoys sports. Winning isn't everything. In addition, children shouldn't be allowed to continue to play when they are injured. Sending a child with an injury into a game gives the child the message that health isn't as important as winning. If we make some basic changes, children might learn to enjoy sports again. 28. What is the main idea of the reading? a. Children often become like their parents b. Children need to play sports in school c. Playing sports may have negative results d. Some sports can cause health 29. How may children said they had some negative experience when playing sports? a. All of the children b. More than half of the children c. Less than half of the children d. About ten percent of the children 30. Which is described as the main cause of more aggressive playing? a. Adults b. Children with low grades in school c. New rules in sports d. Other players 31. What does the writer suggest? a. Aggressive sports shouldn't be shown on television b. Children shouldn't play sports until high school c. Coaches should be required to study child psychology d. Parents should teach children to play sports for fun and exercise 32. What would probably NOT be done when "facing up to a problem"? a. Ignoring the problem b. Finding the reason c. Admitting there is a problem d. Looking for a solution Mọi người giúp em bài này với ạ