Find the measures of the angles in ∆ABC if m∠A : m∠B:m∠C=2:3:4.

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

Someone me what is the area of this figure? 18m 18m 8m 16m

What does independent variable and dependent variable mean in math?