Trả lời

= a + b + c + a − b − a + b − c = − a + b nha

vote cho mik nghen 

chắc tại hc toán nhiều nên đem cách giải vô TA lun =))

là suy ra mik chọn đáp án nào ý 

My mother works in an office. She is an accountant

My brother would like to be a fashion designer in the future

Do like working on an office or a farm?

Lindaa wants to become a doctor because she like take care of patients

I very good at art, I'd good like to become an artist when i grow up

vote cho mik nha

Don't talk until the race finishes.

She will be a good doctor in the future.

vì vậy ta chọn B

Vật mang tin xuất hiện trong hoạt động lưu trữ của quá trình xử lí thông tin. Bộ nhớ ngoài là vật mang tin.

vote cho mik với

a, 

b, 

a

( x − 7 ) : 14 = 5

x − 7 = 70

x = 77

b

3^x = 81

nên x = 4

Ta có số dư lớn nhất là: 47 vì sô chia là 48 nên 48 - 1 = 47

Ta có: x : 48 = 37 ( dư 47 )

           x        = 37 x 48 + 47

           x        = 1823

Vậy ta có số chia là: 1823

3. He has learned to drive since he was 18 years old. 

4. I haven't seen Nga since Mai's birthday party.

5. We haven't seen him for nearly two years.

6. It's years since I enjoyed myself so much.

7. It's over 20 years since he last came back to his house.

8. It’s two years since I last met him.