Số cần tìm là: 420 : 100 x 52,5 = 800
how to cook
listen to music
play with friends
b. quan hệ kết quả- nguyên nhân
1. useful
2. magical
3. beautiful
4. enjoyable
Ha's house is small and it's in the country
2. D
5. C
a) 24
b) 240
c) độ dài: 60cm
d) 140%
2, 4
is