mình cần gấp giúp mình với nhé

Mk đang cần rất là gấp! Bạn nào thấy thương thì vào làm giúp mk nha:) Bài 4 (0.5 điểm). Chứng minh A và B là 2 số đối nhau biết : A = a – b + c B = - a + b - c Bài 5 (1 điểm) : a/ Tìm số nguyên n biết : 3n – 5 chia hết cho n – 2. b/ Chứng minh rằng nếu x + 7y chia hết cho 31 ( x, y ∈ Z ) thì 6x + 11y cũng chia hết cho 31. Giúp mk với!

tính bằng cách thuận tiện nhất: 82,5:25:4 bài 4: bác hai mua một con cá nặng 1,5kg hết 54 000đ.bác ba mua mọt con cá cùng loại có cân nặng 1,2kg .hỏi bác ba phải trả bao nhiêu tiền? bài 5: lớp 5a quyên góp đk 45 quển sách .lớp 5b quyên góp đk số sách =lớp 5a.số sách lớp 5c nhiều hơn một nửa lớp 5b 8 quển.hỏi cả 3 lớp quyên góp đk bn quyển sách??? GIÚP MÌNH NHA... MÌNH GÕ GẤP NÊN CÓ 1 SỐ TỪ SAI 9 TẢ,MONG CÁC BẠN THÔNG CẢM CHO...

Giúp e với các bậc cao nhân thần thánh ơi

giups mik giải nha a.) 10 – 23 + (-35) b.)10 – 27 + (-15) c.) 116 – 8.(3 – 8) + -6 d.) 118 – 8.(4 – 9) + -9 e.) 19 – 8.(-2)2 f.) 17 – 8.(-3)2 g.) (213 – 28) – (-168 + 72 +213) h.) (219 – 28) + (168 - 72 -219) i.) 37.25 - 37.126 + 37 j.) 39.25 - 39.126 + 39

Trong chương trình Ngữ văn có bài thơ nhắc đến con" còn chim bông hoa" .Em hãy chép nguyên văn ccaau thơ mang hình ảnh và cho biết tên bài thơ tác giả là a

Vẽ tự do nhé, ai vẽ đẹp và hay cho 5 sao nghen

Question III: Complete the second sentence so that it has a similar meaning to the first sentence, using the word given. Do not change the word given. (5 pts) 76. I promised my mum that I would work hard this year. (MADE) I ____________________________ that I would work hard this year. 77. “Could you open the door for me, please? said Simon. (ME) Simon __________________________________ the door for him. 78. The judge told the jury to consider the mans past life. (ACCOUNT) The judge told the jury ____________________ the mans past life. 79. Im sorry I didnt look at the hotel room before I booked it. (REGRET) I _______________________ the hotel room before I booked it. 80. I find it hard to go at the same speech as my brother on walking holidays. (KEEP) I find it hard to _________________________ my brother on walking holidays.

xac dinh ctpt cho moi chat theo so lieu 54,5%C;9,1%H; 36,4%N; 0,88g hoi chiem the tich 224ml (do o dktc)

Question II. Choose the correct answer : 1. My brother likes watching TV …………. I like going out with my friends. A. and B. but C. or D. so 2. My father ……………………… a car to work every day. A. drive B. to drive C. driving D. drives 3. ………….. do you take morning exercises?- Because it is good for my health. A. what B. when C. why D. where 4. ……………………..… apples do you want to buy? A. How often B. How far C. How much D. How many 5. Do you know……………… Hoa is? – She is at school now. A. which B. who C. where D. what 6. ………….. do you play football?– Because I like it. A. why B. which C. where D. what 7. …………….. do you go to school?I go to school by bike. A. How B. what C. when D. where 8. My brother used to go work ………………………. bike. A. by B. to C. on D. in 9. I …………..…………. to school on foot. A. go B. to go C. going D. goes 10. I like watching TV, ………………. I watch it in my free time. A. so B. when C. but D. or 11. …………. Do you brush your teeth?- Twice a day. A. how often B. how far C. how many D. how much 12. I want to work in television industry, …………. I am working hard. A. because B. although C. so D. and 13. Children like watching …………………. A. cartoon. B. weather C. news D. horror. 14. …….. are you so late? A. what B. where C. why D. How 15. …………. Are you talking to? - Nam A. who B. when C. what D. How Question III. Put the correct verbs in the brackets. 1. Every morning, Linda (get)……......up at 6.She (have) ………………………breakfast at 6:10 After breakfast, she (brush) ………………...her teeth. She (go) ……..to school at 6:30. She (have) ……………………………..…lunch at 11:30 at school. 2. We (watch)…………….T.V every morning. 3. I (do)……………………my homework every afternoon. 4. Mai and Lan (play)………………….games after school. 5. Vy (listen)………………to music every night. 6. Where (be)………………..your father now? He (read) …………………………………..a newspaper. 7. What …….you (do)………….…………? I (be)…………………….a student. 8. Where ………….you (go)……………….now? I (go) ………………………….…to the market. 9. She is cooking and we (do)……………………..the housework. 10. He isn`t in the room.He (play) ………………………………..in the garden. 11. Look!The birds (fly) ………………………………….……………. 12. I (go)………….to school by bus every day , but today I (go) …………..to school by bike. 13. Listen!Mai (sing) …………………………. 14. They (play)…………………volleyball every afternoon. They (play) ……………………volleyball now. 15. Mai (brush)…………..her teeth every morning. She (brush) ……………………her teeth now. 16. Listen!Lan (play) ……………………….the piano. 17. Mai (be)………………….tired now. 18. It is 6:00 p.m.Mary is at home. She (have) ……………….. dinner with her family around six o’clock 19. Where is your father?He is upstair. He (watch) …………………….……T.V He always (watch) ………………………..T.V at night. 20. Our teacher (live)………………..on Quang Trung street. 21. Bao and Mai (do)…………………the housework now. 22. What ………your mother (do)…….? She is cooking. 23. How …………you (go)……………to school every day? 24. Nam (go)……………..to work by car every day but today he (take) ………………….…a bus. 25. Where ……………..your father (work)……..? In the hospital. 26. Look!The teacher (come) ……………………… 27. She is very clever.She (speak) …………………….….4 languagues. 28. Steve (smoke)………………….10 cigarettes a day. 29. We usually (have)……………………dinner at 7: 00 30. Anne (wash)………………….her hair twice a week 31. Jane (teach)…………………English to children. 32. You (meet)………………….a lot of people. 33. He often (go)………………………….to the cinema. 34. Food (cost)………………………………………a lot of money. 35. Listen!Somebody (sing) …………………………… 36. She is tired.She (want) ………………….to go home now. 37. How often ……you (read)……………a newspaper? 38. “Excuse me, but you (sit)…in my place” “Oh , I am sorry” 39.“I am sorry“ I (not understand)… Please speak slowly. 40. What time …...........she (finish)……………work every day?