Slope of points (2,3) and (-4,12)

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

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

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.