My birthday is on the fifth of August

45 x y - 147 = 663

45 x y = 663 + 147

45 x y = 810

       y = 810 : 45

      y =  18

1. My house is _____ than your house.

A. big                        B. biggest                   C. bigger                               D. small

2. We are _____ some experiments.

A. making                 B. doing                    C. learning                            D. studying

3. _______ does Nga have History? – On Monday and Thursday.

A. When                    B. What time             C. How long                         D. What

4. My brother is a _____. He writes for Tien Phong newspaper.

A. doctor                   B. worker                  C. farmer                               D. journalist

biết thành ngữ thôi, viết văn thì chịu :'))

Rừng vàng biển bạc

vch, triết lý :vvv 

 6,2 x X = 43,18 + 18,82

6,2 x X = 62

        X = 62 : 6,2 

        X = 10