Why is everyone so upset about the new head coach.?

What is the central idea in this advice from branch rickey to jackie robinson?  

What is a positive result of the scientific revolution

Which statement best reflects how martin luther king, jr. uses rhetoric and style in paragraph 9 of "letter from a birmingham jail" to assist him in advocating the use of nonviolent direct action to achieve justice for negro citizens in birmingham? click here to read the letter.