Решите уравнение, ответ- целое число или десятичная дробь

Помогите,пожалуйста.Охарактеризуйте сущность крестьянского вопроса в России начала 20 века

помогите как перенести слово стальной

a) complete the definitions with who, which or where.

It's the person _who_serves you in a cafe

1.They're people____make you laugh.

2.It's a machine____cuts the grass.

3.It's an animal____lives in the sea and has eight legs.

4.It's a room_____people try on clothes.

5.He's the person____helps you with your luggage.

6.It's a kind of food____keeps vampires away.

b)Write sentences with who, witch or where

that / the dog / always barks at night 

That's the dog which always barks at night.

1.she / the woman / lives next door to me

2.That / the shop / I bought my dress

3.He / the actor / was in Friends

4.They / the children / broke my window

5.This / the restaurant / they do great pasta

6.That / the switch / controls the central heati

7.He / the teacher / teaches my sister

8.That / the room / we have our meetings