12.3 – (-9.6) = 12.3 + 9.6 simplify the expression , and explain what the number means with regard to the problem.

Look at attachment. has all info needed. need

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

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.