СРОЧНО!!! Сколько тонн сернистого газа можно получить из 1 т колчедана, содержащего 45% серы, при выходе 98%?

1/(x2 – 64)>4/(64 – x2)

I. Преобразуйте предложения из действительного залога в страдательный. 1. Mother told Nick to go home at once. 2. The new methods of agriculture have already brought good results. 3. Different factories made different parts of space ships. 4. They blamed me for something I hadn’t done. 5. They stole a lot of goods from the shop.

II. Вставьте необходимые вспомогательные глаголы.

1. What … you talking about with my sister yesterday?

2. The product … be advertised on television next week.

3. What … this word mean?

4. The burglar … opening the safe when he heard the footsteps.

5. My brother promised me that he … argue with our parents next time.

log2,5 9 * log9 4 = ?????????