Cho hình vẽ

biết Ô1+ Ô2+ Ô3= 240

a) Tính số đo mỗi góc

b) CM: ∠O1+∠O2=∠O3

Mọi người giúp mk với mk đang rất cần

Tìm m để \(\dfrac{15}{m}\) là phân số tối giản (m\(\in\)Z)

Mọi người giúp mk với mk đang rất cần

I. Read the passage and answer the question:

This is a photo of my family. this is my father. He's 40 years old. He's a doctor.

And this is my mother. She's 35. She's a doctor, too. These are my brother, Tom and my sister, Marry. Tom's 10 and Marry's 7. They're students.

1. How many people are ther in his family? .......................

2. How old is his father? ................................

3. What does his mother do? .................................

4. How old is his brother and his sister? ...............................

II. Viết lại câu sao cho nghĩa không đổi:

1. Mrs. Hoa goes to work at six forty-five.

=> Mrs. Hoa goes to work at a ......................

2. He is in the bath at the moment.

=> He is ................. a ............................

3. What is the price of the tickers?

=> How much ........................ ?

III. Đặt câu hỏi cho từ được gạch chân:

by car

1. Mr. Hai travels to work _______ every morning.

..........................................................................

go swimming

2. They often _____________ in the summer.

.............................................................

an apple

3. My mother needs _________ . .............................

in a hospital

4. Jane's sister works ___________. ..........................

Tuesday and Friday

5. These students have English classes on __________________.

....................................................................................

Mọi người giúp mk với mk đang rất cần.

Thanks!

30\(\times\)31\(\times\)32\(\times\)33\(\times\)k=66\(\times\)81440

982080\(\times\)k=5375040

k=5375040\(\div\)982080=5,47(dư nhiều quá viết thế cho ngắn ngọn)

Vậy k=5,47

Ai mình lại tích lại người đó.