AI GIÚP MIK VS MIK CẦN GẤP ĐỀ BAI: EM HÃY KỂ LẠI CÂU CHUYỆN CÂY KHẾ THEO LỜI KỂ CỦA EM (BÀI NÀY MIK MANG ĐI THI )

a. (x-3) (x+2)>0 b. (x+5)(x+1)<0 c. (x-4): x+6 ≤0 d. (x-6): x-7 ≥0

Cần mn giúp mình câu 12 trong hôm nay nha, mình đang cần gấp !!!

1. When we went back to the bookstore, the bookseller _____ the book we wanted. A. sold B. had sold C. sells D. has sold 2. By the end of last summer, the farmers _____ all the crop. A. harvested B. had harvested C. harvest D. are harvested 3. The director _____ for the meeting by the time I got to his office. A. left B. had left C. leaves D. will leave 4. My mother told me she _____ very tired since she came back from a visit to our grandparents. A. was B. had been C. is D. has been 5. Susan _____ her family after she had taken the university entrance examination. A. phoned B. had phoned C. phones D. is phoning 6. How many cities you and your uncle _____ by July last summer? A. visited B. had visited C. did you visit D. had you visited 7. Miss Jane _____ typing the report when her boss came in. A. didn’t finish B. hadn’t finished C. doesn’t finish D. can’t finish 8. Peter was in New York last week; he _____ in Washington D.C. three days earlier. A. was B. had been C. is D. was being 9. Three women, none of whom we _____ before, _____ out of the hall. A. saw-had come B. had seen-came C. saw-came D. had seen-had come 10. They _____ through horrible times during the war years. A. lived B. had lived C. live D. are living

Ba xe ô tô chở gạo, xe thứ nhất chở 3 tấn 500kg, xe thứ 2 chở 4 tấn 200kg, xe thứ ba chở 4 tấn 300kg. Hỏi trung bình mỗi xe ô tô chở bao nhiêu tấn gạo?

Dạ anh chị làm giúp em câu 2 3 4 ạ. E đang cần gấp

cân bằng phương trình này giùm mk với al+kno3--->kalo2+al2o3+n2

''Phẩm chất ''và ''bản chất'' có gì khác nhau? cách dùng của nó Chọn 1 trong 2 và giải thích : phẩm chất xấu --- phẩm chất tốt bản chất xấu --- bản chất tốt

Cho tam giác đều ABC cạnh bằng a gọi I là trung điểm của BC tính độ dài các cạnh vector sau

giúp mik bài 4 vs nhaaaaaaaaaaaaaa