bài 12: tìm các phân số không trùng nhau trong các số sau 15 phần 35 ; âm 6 phần 33 ; 21 phần 49 ; âm 21 phần 91 ; 14 phần âm 77 ; âm 24 phần 104 ; 6 phần 22

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Read the passage. At the top of the list of the costliest natural disasters in the history of the United States is Hurricane Katrina. Hurricane Katrina was the third strongest hurricane ever to hit the U.S. It affected 90,000 square miles in Louisiana, Mississippi, Florida, and Alabama. The hurricane formed over the Bahamas and turned into a Category 1 hurricane by the time it hit the southeastern tip of Florida. It got stronger as it traveled across the Gulf of Mexico. It had become a category 4 hurricane when it reached Louisiana. The storm surge that followed caused destruction from central Florida to Texas. Louisiana, experienced even more damage because its levees were breeched, letting water flood a large portion of the city. The National Weather Service warned people of the tropical monster that was heading towards the southern coast. Residents were told to expect power outages. They were told they might lose their rooftops and to expect water shortages. About 4/5 of the population evacuated. The estimate was that around 100,000 people remained in the metro area. Some were stranded tourists; others did not own a car and had no way out. Decide if the following statements are true (T) or false (F). 1. Katrina is the most economically damaging hurricane to the US. Answer 2. Katrina was the strongest hurricane in the US’s history. Answer 3. Louisiana suffered the most in the hurricane. Answer 4. The US residents had no information about the hurricane. Answer 5. Those who got stuck in the metro area were all local residents. Answer