When Marla first moved to New York City, she could hardly sleep because of all the noise coming from the nearby street. After a month or two, she stopped noticing these noises, and now she feels like she would have a hard time sleeping in a quiet country village. What explains this change?

Nita is the office manager at a service station. two applicants, max and tim, arrive to interview for the open mechanic's position. max's clothes are dirty, his hair is unwashed, and he doesn't make eye contact when he gives nita his name. tim dresses in clean jeans and a nice shirt, is shaved, and shakes nita's hand when he introduces himself. after the interview, keith the head mechanic, asks nita what she thought. both men have the skill set needed for the position. nita recommends tim. she is responding to her perception of