5/9 - (4/9 - 1/9)=
НАДО РЕШИТЬ! 

how's the weather today?it's fine перевод

помогите пожалуйста написать 15 предложений про лучшего друга

расставить словосочетания по предложениям.

словосочетания:

be more sociable

be less nervous

be more polite

improve her memory

be more independent

be smarter

предложения:

1.Margaret is nice but she always forges things.She should ...

2.Frank is nice but he always dos everything his friends tell him to do. He should ...

3.Danny is nice but he cannot say a word to people whom he doesn`t know well. He should...

4.Jane is nice but sometimes she is rather stupid.She should...

5.Mary is nice but sometimes she is rather rude.She should ...

6.Julia is nice but she worries about everything .She should ...

Составьте уравнение касательной , перпендикулярной оси ординат , к графику функции f(x)= x2(икс квадрат) + 4x