Quadrilateral BCDE is dilated by a scale factor of 2 with the center of dilation at the origin. If the coordinates of point B are (2, 1), the coordinates of B' are

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

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.

|z| > (1/2) {-1/2, 1/2} {z|(-1/2) < z < (1/2)} {z|z < (-1/2) ∪ z > (1/2)}