Two-thirds of the sum of 4 and k
Words to expressions

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

Which two undefined geometric terms always describe figures with no beginning or end?

Collin did the work to see if 10 is a solution to the equation r/4=2.4