The midpoint of overline AB is M( 0, -3)M. If the coordinates of A are (2, -5) what are the coordinates of B?

Anyone know? will mark brainliest if correct

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

Factor the expression using gcf 9b+45