помогите написать пересказ в 15 предложений Rumpelstiltskin

раскрыть скобки

a) 3(a-c)  

b) -6(2a + b)  

в) (-4a-3b)*5

Переведите пожалуйста правильно текст: Oxford University 1. There are about 50 universities in Britain nowadays and three of them - Ox¬ford, Cambridge and London are unique universities with several-hundred-year-old history. The first reference to the Oxford University appears in the 12th century and a century later there were already 1500 students and the University was well-known in Europe. 2. First there were only about 60 chapels and a student was living and studying in one of these chapels learning theology, logic and rhetoric. 3. Oxford University of today is a federation of 48 colleges, each largely inde¬pendent. The word "college" was originally associated with a boarding house for stu¬dents to lodge. Now some of the British colleges are residential and teaching institu¬tions at the same time. 4. The governing body of Oxford University is the Congregation of 1500 men -the assembly of all the members of the colleges. The Congregation chooses the Council of 24 people. The colleges admit students, organize programs, students' work and residence, laboratories, libraries and term examinations, while the Univer¬sity is in charge of organizing final examinations and confers degrees. Forty colleges of 48 admit only men, two colleges are mixed and six colleges are only for women. 5. Social changes have certainly transformed Oxford considerably. Some of the traditions have gone in the past. However, in spite of all these changes Oxford has not lost its distinctive character.

выпишети водоупорные породы. Гранит, глина, песок, кварцит,мрамор, гравий, глиненый сланец, гнейс, галька, базальт.