Stacy and sam smyth were known for throwing a heck of a good party. at one of their wild gatherings, five couples were present (this included the smyths, of course). the attendees were cordial, and some even shook hands with other guests. although we have no idea who shook hands with whom, we do know that no one shook hands with themselves and no one shook hands with his or her own spouse. given these facts, a guest might not shake anyone's hand or might shake as many as eight other people's hands. at midnight, sam smyth gathered the crowd and asked the nine other people how many hands each of them had shaken. much to sam's amazement, each person gave a different answer. that is, someone didn't shake any hands, someone else shook one hands, someone else shook two hands, someone else shook three hands, and so forth, down to the last person, who shook eight hands. given this outcome, determine the exact number of hands that stacy smyth shook.

Which three sentences in the story indicate that that the passage is an ex nihilo type of creation story?

In a communication, the media needs to be shared between devices

It is widely assumed that people need to engage in intellectual activities such as solving crossword puzzles or mathematics problems in order to maintain mental sharpness as they age. in fact, however, simply talking to other people—that is, participating in social interaction, which engages many mental and perceptual skills—suffices. evidence to this effect comes from a study showing that the more social contact people report, the better their mental skills. which of the following, if true, most seriously weakens the force of the evidence cited? (a) as people grow older, they are often advised to keep exercising their physical and mental capacities in order to maintain or improve them. (b) many medical conditions and treatments that adversely affect a person's mental sharpness also tend to increase that person's social isolation. (c) many people are proficient both in social interactions and in solving mathematical problems. (d) the study did not itself collect data but analyzed data bearing on the issue from prior studies. (e) the tasks evaluating mental sharpness for which data were compiled by the study were more akin to mathematics problems than to conversation.