Is -8 x (-5) positive or negative

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Brent wants to know what is 5 x 1/2

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