Tìm cặp nguyên dương x,y biết : x - xy = 4 - y

các bài làm từ bài 7 trở đi nhé mình sẽ cho 5 sao hay nhất nếu bạn nào làm hết

1. The wounded persons were taken to hospital by the police. → The police _______________________________________________________ 2. “Don‟t leave your luggage unattended.” → He asked me __________________________________________________ 3. The salary of a professor is higher than that of a secretary. → The salary of a secretary is __________________________________________ 4. He felt very miserable, so he looked for someone to share his life with. → He looked _______________________________________________ 5. I didn’t realize how late it was and I didn’t stop studying till after midnight. → I didn’t realize how late it was and I went __________________________ 6. When did you start working on the project? → How long _________________________________________________ 7. I am leaving now so that I won’t be late for work. → I am leaving now in ________________________________________ 8. New York City is the busier than any other city in the world. → New York City _____________________________________________ 9. Dina is like her mother’s side of the family. → Dina takes _____________________________________________ 10. “How long have you been standing here?” he asked me. → He asked me _______________________________________________ Mong mọi người giúp đỡ??

Chỉ điền vào cho mình nha cảm ơn

Giúp mk từ A-III vs ạ lm đúng vote 5 sao

Mn giải giúp ) tìm m để bất phương trình sau: mx^2-2 (m+1)+m+7 <0 vô nghiệm

1. It's three years since I started learning Spanish. ( For ) => I 2. It is difficult for my friends to understand Australian's accent. ( Difficultly ) => My friends 3. Tim didn't join the summer camp because he was sick. ( Of ) => Because 4. Could you speak English when you were young? ( Able ) => When you were young, 5. Three hundred students entered the swimming competition last year. ( Part ) => Three hundred students 6. North pole is too cold for humans to live there. ( So ) => North pole is 7. We haven't seen Barak for more than six months. ( Last ) => Ww 8. I can't wait to see the sights in London. ( Forward ) => I am 9. What time does your plane land tomorrow? ( When ) => Can you tell 10. If I were you, I would take part in the summer camp in Canada. ( Advised ) => Jim

Có hai đường dây tải điện tải đi cùng một công suất điện với dây dẫn cùng tiết diện, làm cùng bằng một chất. Đường dây thứ nhất có chiều dài 100 Km và hiệu điện thế ở hai đầu dây là 100 000kV. Đường dây thứ hai có chiều dài 200Km và hiệu điện thế 200000kV. So sánh công suất hao phí vì toả nhiệt Php1 và Php2 của 2 đường dây . Trình bày đầy đủ nhất mk sẽ vote 5 sao và câu trả lời hay nhất

Làm ơn giúp mik với Thanks mn nhiều!!

Cứu mình cần lời giải rõ hơn ạ.