Đặt số h/s nam là a , số h/s nữ là b .

Biết a = 2/3 b khi a + 6 và b + 5

=> a + 6 + b + 5 = 45

<=> a = 45 : ( 3 + 2 ) x 2 = 18

<=> b = 45 - 18 = 27

=> a = 18 - 6 = 12

=> b = 27 - 5 = 22

Vậy số h/s nam ban đầu là 12 , số h/s nữ ban đầu là 22.

sorry cac so la 24,  16  ,  8,     8 nha giai gium mik

Until now, volunteering has always been considered a good and beneficial job for society. Throughout the country, "volunteer clubs" are floating everywhere. This club attracts a large number of students to join because it brings so many benefits to the community and society. When volunteering, the volunteers will become closer together. Put down modern technology devices and act, work together with people who have many common points such as thoughts, ideals and goals, it will be easy to find someone who suits you, then share together. and develop. The longstanding tradition of Vietnamese students has always been associated with the green shirt of the volunteer club, which is a very nice, precious and commendable tradition. So it is necessary to promote and preserve this noble club.

Câu lạc bộ (n): club

 ^_club

* Giống nhau:

- Vua là người đứng đầu nhà nước, nắm mọi quyền hành. Bộ máy nhà nước được tổ chức từ trên xuống dưới, lấy làng, chạ làm cơ sở (đơn vị hành chính).

- Còn đơn giản, sơ khai nhưng đã là tổ chức chính quyền cai quản cả nước.

* Khác nhau:

⟹ Nhà nước Âu Lạc có sự tiến bộ hơn nhà nước Văn Lang về nhiều mặt.

     I am in the school's English club and I will tell you about this club. It is a club where we can practice speaking English, and improve all our skills in English. We can learn a lot about other English speaking countries around the world as well. And while in it, you can even improve your confidence. You can get more career prospects by learning English, and this club has all the modern equipment you can use to improve your skills. Please join this club, it is very helpful for you