câu 1 : 911

câu 2 : 75

câu 3 : 6

câu 4 : tính cái gì vậy

câu 6 : 20

câu 8 : 167167

x=67            duyệt nhé

\(\frac{a-x}{b-y}=\frac{a}{b}\)

=>(a-x)*b=a(b-y)

ab-bx=ab-ay

=>bx=ay

=>x/y=a/b

oooooooooooooooooooooooooooooooooooooooo

X x 5 = 130 -5 

X x 5 = 125

      X = 125 : 5

      X = 25

con dê dê nhất thế giới k nha

1/ He always gets to work on time

=> He's never late for work

2/ I'm sorry to have kept you waiting

=> I must not keep you waiting for me

3/ The bus strike prevented me from going to work

=> I wasn't at work because of the bus strike

4/ He didn't know enough English to pass the examination

=> He found the English examination difficult for him to pass

5/ If I had seen him, I would not have gone home

=> As I didn't see him, I would not gone home

6/ The teacher made the class stay in after school

=> The class was made to stay in after school by the teacher

7/ I started going to Scotland for my holiday 5 years ago

=> I have gone to Scotland for my holiday for 5 years

8/ He's an only child

=> He hasn't any sisters or brothers

It's very expensive. It has very poor quality.

=> It has not only high price but also poor quality.

Lúc đầu Bình có 115 viên bi