Alice is analyzing the dot plots of the distributions of the ages of children at a local park taken on two consecutive days.
The dot plot for Saturday is as follows:

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

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.