Giúp em với ạ? Mong được hồi đáp ạ

Giúp mình giải bài tập sinh 9 với ạ

Nhanh nha các pạn oi câu giải câu c là chính

cả dàn ý nx nha chỉ dựa mạng thui đừng chép hẳn nhanh nha 9h30' phải nộp r

các kiến thức về hình học đã học ở lớp 6 liên quan đên tiên đề Euclid

Đặt tính rồi tính: 42,06 + 17,62

giải giúp mk mấy câu trong ảnh vs ạ

Tìm x và y (12x-5)(4x-1)+(3x-7)(1-16x)=81

3. This T.V programme is very long and it takes you a few minutes to do washing. We will _____ T.V by the time you _____ back. A. Have watched / will get​​​ B. have watched / get C. have been working / get​​​ D. watch / will get 4. And here are the main ponits of the news again. The pound _____ against the US dollar. ​A. has fallen​​ B. fell ​​​C. was falling​​ D. had fallen 5. What _____ in the office when fire happened yesterday morning? ​A. did you do​​ B. had you done​ C. are you doing​ D. were you doing 7. She let the letter _____ on the floor. ​A. fell ​​​B. fall ​​​C. falls​​ D. falling 11. I met many people , their cattles and their vehicles _____ to the village fair. ​A. went​​ B. were going​​ C. who went ​​D. going 12. Try to work, you _____ in the exam. ​A. will succeed​ B. can succeed​ C. both A and B​ D. would succeed 13. I will stay here to wait for my father until he _____ back. ​A. comes​​ B. will come​​ C. would come​ D. came 14. I had the porter _____ my suitcase to the taxi. ​A. carried​​ B. carry​​ C. carrying​​ D. to carry 15. We stayed in that room and did the exercises ______ yesterday. ​A. to give​​ B. give​​ C. giving​​ D. given 16. You will find that soft drink whenever you _____ . ​A. will go​​ B. went ​​ C. go​​​ D. are going 17. I’ll have a good time whether I _____ . ​A. win or lose​​ B. will win or lose​ C. have won or lost​ D. would win or lose 19. I recommend that she _____ with me. ​A. go​​​ B. should go​​ C. A and B​​ D. goes ( trả lời và giải thích cho mình luôn nhé)❤️❤️❤️

Tìm x và y 3y(2y-4)-2y(3y+5)=44