đây là đố mẹo

49 + 49 + 3 = 101

chúc bn hok tốt

chúc bn hok tốt nhé :3

ok chưa

được chưa

Cái phép này chắc tính 1 năm sau chưa hết 

Mà mới học tiểu học hỏi bài lớp 12 chi à mà đây ko phải lớp 12 lun á cái này chắc tầm lớp 100

Mặt thằng khác đấy không phải mặt tao đâu

Mong bạn tham khỏa ạ !!

bình thường

hello nha

mình lớp 12 nha

Em viết phần intro nha:

The chart above decsribes how the birth rates of 2 countries namely China, USA changed in 80 years which started from 1920

Answer:
The line graph compares the birth rates in China and the US and how these rates changed from 1920 to 2000.
Overall, there was a general decline in fertility of both nations throughout the time surveyed. However, the US’s birth rates almost was higher than that of China over the whole period.
American saw a significant fluctuation in the birth rates between 1920 to 1935, but it always remained over 10%. However, in the following decade, the fertility of the US decreased sharply to under 5 %. From 1945 to 1950, there was a rapidly increased in American’s birth rates, at 15%, reaching the highest point of it’s own during the whole period. From that on, the fertility of the US fell gradually to 7% in 2000.
During the 80-year period, the birth rates in China changed more significantly than in the US. It fell down to 5% in the year 1940, then reaching a peak of whole line graph in 1950, at 20%. Over the remainder of the period, China saw a sharply drop in the birth rates to only about 2% until 2000.

bằng 2 

k nha

a2 b3 c4 d5

tương lai

ngày mai!bn lên gg mà tra!