What definition of psychology fits in the sentences Our track team has a very successful psychology?

In “we wear the mask,” which message is conveyed by dunbar’s repetition of the phrase “we wear the mask”?

Afruit stand has to decide what to charge for their produce. they decide to charge \$5.30$5.30dollar sign, 5, point, 30 for 111 apple and 111 orange. they also plan to charge \$14$14dollar sign, 14 for 222 apples and 222 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

In  the earth is precious, chief seattle says that man did not “weave the web of life, he is merely a strand in it.” what attitude is he implicitly criticizing by saying this?