it takes 2 painters 5 hours to finish painting a house. how long would it take to finish painting a house if there were 20 painters working at the same rate?

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