Change these sentences into negative and questionable:

1.She studied English in 2000.

(-)...........................................................................

(?)...........................................................................

2. We did our homework last night.

(-).........................................................................

(?)..........................................................................

Nhầm nha 

12 * 5 * 15 * 7

= 3 * 4 * 5 * 3 * 5 * 7

= 3 x 3 x 5 x 5 x 4 x 7

= 9 x 25 x 28

= 225 * 28

= 6300

k mk nha

Mk cảm ơn các bạn nhiều

Thank you very much