tùy vào trường hợp, chắc là D. There

lá lành đùm lá rách

75ha = 750 000m² 

1. I'm not very good at math.

2. my teacher is very good.

3. I have learned a lot of things from math such as: how to calculate addition, subtraction, multiplication, division .....

4. I also find it a bit difficult.

5. Because when learning math, children will know how to calculate and can help their parents in calculation work.

best

b.\(\dfrac{61}{7}\)

5,020km

of

D(Đỏ)

D