tìm x ϵ N biết :\(4\dfrac{1}{3}.\left(\dfrac{1}{2}-\dfrac{1}{6}\right)\le x\le-\dfrac{2}{3}\left(\dfrac{1}{3}-\dfrac{1}{2}-\dfrac{3}{4}\right)\)

Tìm x biết: (x - 1) + (x - 2) + (x - 3) + . . . . . + (x - 100) = - 4050 

Tìm số nguyên n để phân số A = \(\dfrac{2n+5}{n+3}\) có giá trị là số nguyên.

Rewrite each of the following sentences so that it means the same . (2.5 p)

1. What is your brother’s favourite sport?→What………………………………………?

2. He is the best at playing football in the club?→Nobody……………………………………..

3. How much does this television cost?→What…………………..

4. She is a beautiful dancer → She ……………………………..

5. The article is very long.→What……………………………….!

6. We started to live here in 2012.→ We have……………………………………………….

7.Mary didn’t go to school yesterday because of her sickness.

→Because Mary……………………………………………………

8 .What is your daughter’s age ? → How old…………………………….….?

9 .Mr. Pike plays table tennis well.→Mr. Pike is…………………………

10. The test was difficult but many students did it well.

→Although………………………