Nửa chu vi:

   170 : 2 = 85 (m)

Chiều rộng:

   85 : (2 + 3) x 2 = 34 (m)

Chiều dài:

  85 - 34 = 51 (m)

Diện tích:

    51 x 34 = 1734 (m²)

mik giải  rồi nha

1.  Start early or we’ll get there late!

A. If we start early, we’ll get there late. C. We’ll get there late if we don’t start early.

B. If we’ll get there late, we start early. D. Unless we don’t start early, we’ll get there early.

2. “I met my old friend in this store yesterday,”she said to me.

A. She said that she met her old friend in this store the day before.

B. She told me that she had met my old friend in that store yesterday.

C. She told to me that she had met her old friend in that store the day after.

D. She told me that she had met her old friend in that store the previous day.

3. “We’ll call you tomorrow, Jack,” they said.

A. They said that they will call Jack the day after. C. They said they would call Jack tomorrow.

B. They told Jack they would call him the day after. D. They said they would call him the day after.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions

4. If I were you, I would not do such a rude thing. A. Were I be you, I would not do such a rude thing.

B. Were I you, I would not do such a rude thing.

C. Were I to be you, I would not do such a rude thing.

D. Was I you, I would not do such a rude thing.

5. She wants to study abroad. She’s trying to learn English.

A. She wants to study abroad because she’s trying to learn English.

B. She wants to study abroad in order to learn English.

C. Thanks to her learning English, she can study abroad.

D. She’s trying to learn English so that she can study abroad.

Đổi: 1 tuần= 7 ngày.

Ta có:

Cháu:|--|

Ông:  |--|--|--|--|--|--|--|

Tuổi cháu hiện nay là:

60:(7-1)=10( tuổi)

Tuổi ông hiện nay là:

10+60=70( tuổi)

Chúc bạn học tốt!

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