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Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours