Which property does each equation demonstrate? x2 2x = 2x x2 (3z4 2z3) – (2z4 z3) = z4 z3 (2x2 7x) (2y2 6y) = (2y2 6y) (2x2 7x)

Find the difference (8ab+a+2) - (3ab+6)

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

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