Hiện nay tổng số tuổi của hai mẹ con là 32 tuổi. Tính tuổi hiện nay của mỗi người,biết rằng tuổi mẹ có bao nhiêu tuần thì tuổi con gồm báy nhiêu ngày.

Tập hợp các số tự nhiên x thỏa mãn x . 0 = 2 có bao nhiêu phần tử ? 0 1 2

phải giải thích nhé nhanh lên 10h 15 ' mình nộp bài giải thích dài mới có ctlhn mình cảm các bạn hhhhhhhhhhhhhhheeeeeeeeeeeeeelllllllllllllllllllppppppppppppppppppp ____________ is waste material or unwanted thing that you throw a way, for example, an old plastic bottle, spoiled food from a kitchen. (0.5 Points) Garbage Biodegradable Water pollution An oil spill 2It lives in the sea. I'm frightened of it! It sounds like "park". (0.5 Points) It is a whale. It is a shark. It is an octopus. It is a crab. 3This big animal lives in the sea and on land or ice. It has two big round eyes. What is it? (0.5 Points) It is a shark It is an octopus. It is a whale. It is a seal. 4It has eight arms and lives in the ocean. What animal is it? (0.5 Points) It's a shark. It's a sea horse. It’s an octopus. It's a jelly fish. 5It is a grey sea animal. It can swim very fast and jump very high. It is also friendly. (0.5 Points) It’s a crab. It’s a dolphin. It’s a sea turtle. It’s a shark. 6Will we ______________ water pollution in the future? Yes, we will. (0.5 Points) stopped stopping stops stop 7To protect the environment, we ................................. pick up our trash before we go. (0.5 Points) doesn't has to can't must 8There is too much pollution. The fish ................................... live here. (0.5 Points) must have to can't should 9We ..................................... cut down the forests. We need to protect the animals. (0.5 Points) have to must can't can 10We ..................................... the oceans to make a better world. (0.5 Points) throw destroy protect pollute 11Complete the sentence. Use "will" or "won't". Plastic bags ______________ disappear. They will stay for a long time. (Fill in ONE missing word) (0.5 Points) Enter your answer 12Look at the picture. Use "mustn't" or "must". You ............................ walk on the grass or pick up the flowers. (Fill in ONE missing word) (0.5 Points) Enter your answer 13Look at the picture. Use "mustn't" or "can". Students .................................... use their phones in classrooms. (Fill in ONE missing word) (0.5 Points) Enter your answer 14Complete the sentence. Use "will" or "won't". I am hungry. But I ___________ eat anything, because we are having dinner soon. (Fill in ONE missing word) (0.5 Points) Enter your answer 15Complete the sentence. Use "will" or "won't". Don't worry. I ____________ send you an email soon. (Fill in ONE missing word) (0.5 Points) Enter your answer 16Complete the sentence. Use "Will" or "Won't". _______ Billy spend all his money on a new game? No, he won't. (Fill in ONE missing word) (0.5 Points) Enter your answer 17Use "must" or "have to". You ..................................... bring a passport when you travel to the USA. (Fill in ONE missing word) (0.5 Points) Enter your answer 18Use "will" or "won't". I don't think it ..................... rain tomorrow. (Fill in ONE missing word) (0.5 Points) Enter your answer 19This is a kind of small fish. It has a head like that of a horse. It is a ............................ (Fill in ONE missing word) (0.5 Points) Enter your answer 20An accident ship can cause an oil __________. (Fill in ONE missing word) Immersive Reader (0.5 Points)

Giúp mình câu này . Mình vote 5* ạ

Gấp gấp làm dùn e với ạ e không biết làm

Hộ mk vs mấy bn ơi mk đang cần gấp ạ

39. They used to be _________ enemies, but now they have managed to bury the hatchet for the sake of mutual benefits. (RECONCILE) 40. List the problems facing poor and _________ countries. (POPULATE) 41. I think most of the local ________ around here are very friendly. ( INHABIT) 42. It is ________ for beginning students to make mistakes in English. (AVOID) 43. Both Nam and Hoa are stamp _______They share the same hobby (COLLECT) 44. Their plan seemed to be _________ possible. (THEORY) 4 5. Air ______is a big problem in many cities in the world.( POLLUTE) HELP!!!!!

xây dựng quy tắc tính nhanh lũy thừa của một số có chữ số tận cùng bằng 5

giúp mk càng nhanh càng tốt, còn 10 phút nữa

Cho A = {0; c} ; B = {1; a; b}. Tập hợp nào sau đây gồm một phần tử thuộc tập hợp A và hai phần tử thuộc tập B ? A. {0, c} B. {1; a; b} C. {a, b, c}