Among the qualities listed on the human relations scale, the most important one for building new relationships isa. consideration. b. self-confidence. c. self-honesty. d. a sense of humor. what's the answer?

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?