Simplify. −4x2−5(x+3)+x2 −4x2−5x−15 −3x2−5x−15 −9x2−15 −23x

Explain why the factor 1.5 is broke. into two numbers in the model.

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

Identify the number 127 as a rational or irrational. explain