1,Tính a,(4x-3y)×2x^2 b,(3x-2y)×(3x+2) c,(6x^2y-5xy^3+2xy^2)÷2xy

Ứng dụng thực tiễn của phép đo độ dài Giúp em đi ạ

khoanh tròn từ đọc khác loại 3, A.classes B lakes C oranges D watches ( gạch chữ es) 4.Acandy B. mathes C apple D table ( gạch chữ a) 5. A hospital B ride C.behind Dfine (gạch chữ i) nhanh nha

ai vẽ hộ em con thỏ lửa này được không ạ (không sao chép trên mạng)

Mọi người trả lời giúp em với ạ

Hòa tan hoàn toàn 10g hỗ hợp $KHCO_{3}$ và $CaCO_{3}$ vào dd $HCl$ thu đượcV lit khí (đktc). Tính V

Rút gọn biểu thức: $\sqrt{5+\sqrt{21}}$ + $\sqrt{5-\sqrt{21}}$ - $2\sqrt{4-\sqrt{7}}$

Giải giúp mình 3 câu này mình cần gấp

Turn these sentences into reported speech. (1) 1. She said,” I can’t find my umbrella” → ___________________________________________________________ 2. They said, “We are learning English now” →___________________________________________________________ 3. “ My friend is coming next week”, Tom said. → ___________________________________________________________ 4. “ I’ll help my mum with housework this weekend” →___________________________________________________________ 5.“We shall overcome this difficulty”, they said → ___________________________________________________________ 6.“ My father is a doctor here”, my friend said → ___________________________________________________________ 7.“I am going on holiday tomorrow”, the boy said to his neighbor. →___________________________________________________________ 8.“ You will have to finish all these exercises before next week”, the teacher said to his students → ___________________________________________________________ 9.“ I came back here early yesterday,” she said. → ___________________________________________________________ 10.“ I’ve broken the vase,” she said →___________________________________________________________

25. This is …………………… man I’ve ever seen. A. best B. better C. good D. the best 26. That child behaves ……………………. of all. A. the most carelessly B. the more carelessly C. more carelessly than D. as carelessly 27. She speaks ………………. than I do. A. as quickly B. quickly C. more quickly D. quicklier 28. He didn’t arrive as ………………. we did. A. late as B. late than C. later than D. the latest as 29. You can take ……………………. books as you want. A. as many B. as much C. so much D. too many 30. I am one centimeter ………………. than you. A. tall B. as tall C. tallest D. taller 31. His job is …………………… as mine. A. not so difficult B. not that difficult C. not more difficult D. not very difficult 32. Of the two sisters, Linda …………………… A. is beautiful B. the most beautiful C. is the more beautiful D. is as beautiful 33. The lab is ………………… from the bus stop than the library. A. farer B. farther C. further D. B or C 34. A cat would be ……………….. to look after ………………. a dog. A. easy / than B. easier/ than C. easier/ to D. the easiest/ than 35. Our flat is ……………….. of those in this building. A. larger B. the largest C. as large D. largest 36. This box is the ………………. of the two ones. A. heavy B. heaviest C. heavier D. most heavy 37. "John's grades are really bad." "Yes, but Tim's are……………..' A. worse B. worst C. badder D. so worse 38. "I've got ten dollars" " I think I have……………….. money than you" A. least B. fewer C. less D. fewest 39. “ I don’t like to talk to Mr. David.” - “ He speaks …………………, doesn’t he?” A. more fast B. too fast C. fastly D. much fast 40. I’ll write to you ………………….. I can. A. sooner than B. as sooner as C. as soonest as D. as soon as 41. He is a ……………….. teacher. A. good B. well C. best D. better 42. ……………. the man gets, …………………. he becomes. A. the more old/ the more absent-minded B. the older/ the more absent-minded C. the older/ the absent-minded D. the more old/ the most absent-minded 43. Gorge learns …………………… of all the students. A. bad B. badly C. worse D. the worst 44. I go out less than I used to.. A. I don’t go out more than I used to. B. I used to go out less than I do C. I don’t go out as much as I used to D. I don’t go out as many as I used to 45. The hotel wasn’t as expensive as we thought. A. The hotel was more expensive than we thought B. The hotel was as expensive as we thought C. The hotel was cheaper than we thought D. The hotel was more cheaper than we thought 46. You are 80 years old. I am 90 years old. A. You are younger ten years than I am B. You are ten years younger than I am C. You are ten years younger as I am D. You are ten years youngest than I am 47. Boys often learn Math ………………… than girls. A. well B. good C. the better D. better 48. Don’t walk so …………. Can’t you walk ……………. ? A. fast/ more slowly B. fastly/ more slowly C. fast/ more slow D. fast/ slowlier