hưởng ứng phong trào kế hoạch nhỏ riêng trong giai đoạn 2013-2018, thiếu nhi cả nc đã thu gom 7,247,096 tấn giấy vụn trị giá hàng chục tỉ đồng để xây dựng quỹ đội và giúp đỡ thiếu nhi vượt khó do hội đồng đội trung ương phát động. ba chi đội 7a, 7b, 7c đã thu đc tổng cộng số kg giấy vụn bằng diện tích của 1 hcn có độ dài 2 cạnh liên tiếp là 4 và 30. biết rằng số giấy vụn thu đc của 3 chi đội lần lượt tỉ lệ với 9,7,8. hãy tính số giấy vụn mỗi chi đội thu đc Mình sẽ cho câu trả lời hay nhất nhưng phải đúng và cảm ơn trước

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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. Life in the big city is face-paced, fun and exciting. There are countless job opportunities and activities to occupy your time. However, with the good, there also come the bad. Although the big city has more job opportunities, there are also more people competing for a single job. This can make your job search frustrating. Oddly enough, you will see hundreds, if not thousands of jobs available each week, but you still might remain unemployed, especially when the economy is down. In addition, the cost of living is typically higher in big cities, and it can cost you an arm or a leg for a small apartment in a decent area of the city, not to mention other costs to fulfill your basic demands. Moreover, traffic can be a nightmare in the big city. It can get so bad that it can turn you into an evil person. If you hate driving in heavy traffic, then the big city life is not for you. Heavy traffic also contributes to the pollution, which is one of the biggest disadvantages of living in the city. Obviously, our health is affected most with certain diseases relating to respiratory system. Most importantly, there is always more crime in a big city, causing you to seriously consider before making your final decision on living in a big city. In the big city, people tend to__________ when the traffic is getting heavy. A: wait a bit longer B: go crazy C: slow down themselves D: keep calm ai giúp mình với