graph Theory RAMI

Please, answer these problems based on the number of the problem, also see the documents in order to find the questions.
– 4.2: 4; 4.3: 4, 8; 4.4: 6, 8
– 5.4: 2, 6, 7;
– 6.1: 9, 19
– 6.2: 12, 15
– 6.3: 7, 8, 9, 10.

Attachments:

new_doc_21.pdf