To be there for that person or friend to be compassionate
Kafka criticises the emptiness and meaningless aspects of life. In " The Metamorphosis" ,Gregor 's lifestyle is too boring since all he does is to work to support his family. This absurdity , which means that people's ordinary life is shallow, is represented by the insect. Gregor becomes an insect and no one in the story seems to be surprised. Therefore, people's feelings do not exist since Grgor's family tries to adapt and live with <em>the insect</em>. Life is a matter of having money to live and people have to accept the production or financial structure to survive. Besides, " The Metamorphosis" is an existentialist text because it shows the way human beings are thrown into a world they have not chosen and if they want to change their fate, this change will depend on them. Gregor has not chosen to become an insect ,but he has not chosen to work all day long to support his family and not to have time for love or pleasure,either. However, when he is an insect, he can have some fun looking at pictures or listening to music.
We cannot answer either of those questions without knowing how many pieces are left.
If there are x pieces...
a. 65x, since each piece adds 65 centimeters to the total length.
b. 65(x-1). Same logic as above, except we subtract one from x since we have one less piece of yarn.
Also, make sure you place your question in the right category! You put this question in English, but it looks to me like more of a Math question.