A. charity B. exchange C. channel D. character

Would you like to come _down_ to my house on Sunday à? mk chịu rồi

a) Có: 4 . 4(4-1):2 = 6 đường

b) Có: 50.(50-1):2 = 1225 đường

c) Có: n(n-1):2 đường 

70 - 5(x-3) = 45

5(x-3) = 70 - 45 = 25

x - 3 = 25 : 5 = 5

x = 5 + 3 = 8    

-What do we prefer?

-What kinds of music does she like?

=>How does she like English?

AGREE

When you don’t need a light, switch it off.

ấy!đây lớp sáu cấp quận mà!