the constitution made no mention of how many justices should sit on the supreme court. which statement regarding how the number of justices is set is true?

the labor movement in the united states grew out of the need to protect the common interest of workers

for those in the industrial sector organized labor unions fought for better wages reasonable hours and safer working conditions

  in the 19th century trade unionism was mainly a movement of skilled workers.

hope this

because of the war the westeners befriended japan and each other advance.