Please help! Explain if you can

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

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 inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4