371+483*а+629 упростить выражение

Помогите пожалйста. В воздух шар поднимался так. Из кирпичей устроили печь. В ней сжигали солому. ( Над печью к жвум столбам привязывалишар или Шар привязывали к двум столбам над печью) Какое лучше предложение выбрать из скобок первое или второе??? Заранее спасибо)

Расставь знаки арифметических действий и, если нужно, скобки так, чтобы получились верные равенства.

7 7 7 7=6                       7 7 7 7=8

7 7 7 7=15                     7 7 7 7=294 

Теория "Москва-третий Рим" наиболее полно была сформулирована

нилом сорским

монахам филофеем

митрополитом зосимой

иосифом волоцким

Пожалуйста, помогите ответить на вопросы:

1) What role do theatre and cinema play in your life?
2) Have you ever seen plays or films that you can call great? What were they? What makes them great?
3) How many different types of films do you know? Can you say which of your friends like which films?
4) When you go to the cinema or to the theatre where do you like to sit?
what do you like to do before and after the play or film and in the interval?
5) What do you know about some of the world's greatest opera houses? What do you think makes people like opera and ballet? Do you like them? Why (not)?
6) Why is art important for people?
7) Would you like to appear on the stage or on the screen? In what roles?
8) People of what professions take part in making a film or a play? Which of them could you choose?

1) Do you like sport? Do you do sports or do you watch them? And what about your friends?
2) How is sports activity organized in your school? Is there anything that you'd like to change?
3) What are the sports which Russia has traditionally been good at? Do you know the names any famous Russian sportsmen? Are there any athletes that you admire?
4) Why is the Olympic movement so popular? What do you know about its history?
5) Why is it important that people should go in for sport? What does practising sport give us?
6) What are your best results in different sports?
7) What is your greatest wish connected with sport?