đây là mấy từ khoá hả?

=>They have known each other for 3 months.

Rewrite each of the following sentences in another way so that it means almost the same as the sentence.

1. They always go to school on time.

=> They....................................................

2. Mai likes orange juice and lemon juice.

=> Qrange juice...................................................

Ai đúng mik tick nha!!!

Đổi 8mm= 0,8cm 

Chiều rộng thật của căn nhà đó là

0,8.500=400(mm)

Độ dài đường chéo AC là:

4/7.2:5/3=24/35(m)

2/7+3/7:6/7

= 2/7+3/7.7/6

= 2/7+ 1/2

=4/14+7/14

= 11/14

tick chi mik nha

Độ dài đường chéo là:

(4/7.2):5/3=24/35(m)

Tick mik nha

"Write your story in 80-100 story" 

Are you sure about that

= 1/5.8+1/8.11+1/11.14+...+1/y(y+3)= 98/1545

=1/3.(1/5-1/8+1/8-1/11+1/11-1/14+...+1/y-1/y+3)=98/1545

=1/3.(1/5-1/y+3)=98/1545

=1/5-1/y+3=98/1545:1/3=98/515

=1/1+3=1/103

y+3=103

y=103-3

y=100

20,84%