What is 2+2 give me the correct answer please

Why did the author include the fact that 40,000 african americans participated in the bus boycott

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.

How does mercutio, in romeo and juliet, convey his anger before dying?