Cho a+5b⋮7(a,b thuộc N). Chứng minh rằng 10a+b⋮7

Bài hơi khó nhà các bạn a) xy-x=2y b) x+2y+y=0

Tìm số nguyên x, biết a) (3x – 6) + 3 = 32 b) (3x – 6) - 3 = 32 c) (3x – 6) . 3 = 32 d) (3x – 6) : 3 = 32 e) (3x -24).73 = 2.74 f) |x| = |-7| g) |x+1| = 2 h) |x+1| = 3 và x+1< 0 i) x +|-2| = 0 j) 4.(3x – 4) – 2 = 18

-Tuyển thành viên cho nhóm Team FA ạ Vẽ anime hoặc Kuro , mèo đen trong servamp

Question 15: Bill hasn’t _________his mind about what he should bring with him on the trip to Russia. A. come into B. made up C. gone through D. thought of Question 16: I dream of an adventure to _____________ Amazon. A. an B. x C. a D. the Question 17: A pile- _______has just happened near the hotel. A lot of cars have been seriously damaged. A. off B. on C. in D. up Question 18: This knife needs _______to cut fresh meat more easily. A. sharpened B. sharpening C. to sharpen D. to be sharpening Question 19: Take cupcakes out of the oven, then _______them with topping and colurful butter cream. A. garnish B. decorate C. furniture D. prettify Question 20: When the water boils, add _____salt and _______slice of lemon into the soup. A. some/some B. some/a C. any/ a D. any/ some

21. She __________ blood twenty times so far. A. donates B. has donated​C. is donating​ D. to donate 22. Traditional volunteer activities include _______ money for people in need, cooking and giving food. A. getting​B. rising​ C. raising​ D. taking 23. Nam ____________________ eating fast food because it’s not good for her health. A. likes​B. loves​ C. hates​ D. enjoys 24.If you want to live long, you ____________ eat much red meat. A. should​ B. mustn’t​ C. have to ​ D. shouldn’t 25.I _____________playing board games interesting because I can play them with my friends. A. think ​ B. find​ C. say D. tell

Tìm chữ số tận cùng của 51 mũ 51

Mọi người hỗ trợ mình bài tập sau đây nhaa $ ! $ : Viết đoạn văn nhận xét, review về bộ phim KungFu Panda bằng Tiếng Anh. $ * $ Nghiêm cấm sao chép từ các nguồn khác trên mạng^^.

describe your mother in English

giúp mình làm bài 11 và 12 ạ ,cảm ơn