There are four people in a room that haven’t met before. they are told to shake hands, exactly once, of every other person in the room so that they all meet each other. if each of these people shake their hands with every other person exactly once then how many handshakes are going to occur?

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250