giúp em giải đề này em đang cần gấp ạ

Giúp em giải thích từng bước câu này với ạ em xin cảm ơn ạ hứa sẽ cho 5 🌟

Tìm Y biết: a) y x 5 = 1948 + 247 b) y : 3 = 190 - 90 c) y - 8357 = 3829 x 2 d) y x 8 = 182 x 4

Bài 2: Sử dụng các mệnh đề quan hệ viết lại các câu dưới đây: 1. Show me the new hats. You bought them last night. =>> …………………………………………………………………….. 2. That is a company. It produces rings. =>> …………………………………………………………………….. 3. My best friend can compose songs. Ly sings folk songs very well. =>> …………………………………………………………………….. 4. Zoe bought a new phone yesterday. I can use it to send and receive messages. =>> …………………………………………………………………….. 5. The man is her father. You met him last week. =>> …………………………………………………………………….. 6. Zoe likes the blue T-shirt. My sister is wearing it. =>> …………………………………………………………………….. 7. Zoe has a sister. Her sister’s name is Juma. =>> …………………………………………………………………….. 8. The children were attracted by the show. It was performed so many. =>> …………………………………………………………………….. 9. Tet is a festival. Tet often happens in late January or early February. =>> …………………………………………………………………….. 10. Jack is the boy. He is giving my mom a gift. =>> ……………………………………………………………………..

Bài 4: Chọn mệnh đề quan hệ phù hợp điền vào chỗ trống dưới đây: 1. The film about _____ they are talking about is fantastic. A. who B. which C. whom D. that 2. He is the boy _______ is my best friend. A. that B. whom C. who D. A& C 3. I live in a pleasant room ____________ the garden. A. to overlook B. overlooking C. overlooked D. which overlooking 4. The pilot was the only man _______ after the crash. A.was rescued B. rescued C. rescuing D. to be rescued 5. I’ll see you near the post office ___________ we met the other day. A. which B. where C. when D. why 6. The people ____ for the bus in the rain are getting well. A. waiting B. to wait C. waited D. wait 7. I have a message for people _____ by the traffic chaos. A. to delay B. who delay C. delayed D. who delaying 8. Melanie was the only person _____ a letter of thanks. A. wrote B. written C. to write D. writing 9. I met a lot of new people at the party ________ names I can’t remember. A. whose B. which C. who D. whom 10. Tell me the reason ______ you were absent yesterday. A. where B. when C. why D. that

Gấp,cần rất gấp nhá.Thanks you đã làm đúng

Tính giá trị biểu thức theo cách thuận tiện nhất: a) 103 + 91 + 47 + 9 b) 261 + 192 - 11 + 8 c) 915 + 832 - 45 + 48 d) 1845 - 492 - 45 - 92

Giúp em với ạ, em giải là 1. C 2. B 3. C 4. A Nhưng mốt số bạn giải khác em, mong được giúp đỡ và giải thích ạ

Khi nung nóng lần lượt a gam KMnO4 và b gam KClO3 sau phản ứng hoàn toàn thu được cùng một lượng khí Oxi (đktc). Tính a/b GIÚP EM GẤP Ạ

đáp an thui I. EXERCISE 1 : Add tag questions to the following. 1. You don't know where Ann is, …………..? 2. They haven't seen this film, ……………..? 3. You wouldn't tell anyone about it, ……………? 4. He'have never seen you before,……………….? 5. Let's go out for a walk, …………………..? 6. This is your book,………………? 7. I am supposed to be here, ………….? 8. There is a meeting tonight, ……………………? 9. Tom won't be here late, ………………………………? 10. You 're tired,……………………….? 11. You haven't lived here long, ………………? 12. You came in a sports car, ………………………? 13. These cakes look good, ………………………? 14. You can speak German, …………………..? 15. You coundn't do me a favour, ……………….? 16. My wife cooks well, ………………………? 17. You don’t like playing games, ………………………..? 18. They should have been able to do it , ………………………………? 19. She doesn’t come here, ………………………………… ? 20. Tom can help her, …………………………….. ? 21. You won’t be late, …………………………? 22. The students should keep silent, …………………………… ? 23. Mary seldom wears her dress, ........................................ ? 24. Tom and Jerry can’t live in peace, ............................................ ? 25. The case weights thirty kilos,.............................................