Докажите примитивность строения животных, имеющих первичную полость.

Составить молекулярные уравнения гидролиза след.солей:сульфит калия,нитрат аммония,карбонат натрия,хлорид меди (2),сульфид хрома(3);указать их среду(щелочная,кислотная)

Любой лёгкий рецепт на англ.яз. с переводом

помогите , срочно надо !!! Вставте де потрібно some, any, no, the, a. 1. ... cats like... milk. 2. They stopped in ... front of... house where Tom lived. 3. I showed him ... way to ... station. 4. What is... name of... street in which you live? 5. I want to say ... words to your sister. 6. ..... tea in this glass is cold; 7. ..... sun was high in ... sky.,8. Oh, there are .... apples in ... vase: ... children have eaten all of them. Please put... apples into ... vase. 9. Yesterday we had ... fish for dinner. 10. He gave me ... coffee. 11. I drank ... cup of ... coffee after ... dinner. 12. She bought ... new books yesterday. 13. Where are .... books which you brought from ... library yesterday? 14. Did you buy ... apples when you were at... shop? 15. We could not skate because there was ... snow on... ice. 16. ... house must have ... windows. 17. Most people like ... music. 18. There was ... meat on Nick's plate and .... fish on Tom's, 19, We saw .... houses in the distance .

в треугольнике ABC AB=4см BC=7см AC=6см А=80 градусов в треугольнике MNK MK=8см MN=12см KN=14см найти угол М угол N угол К если угол B=60 градусов