5) If an item costs $500 and is on sale at 15% off and sales tax on the item is 8% find the cost after the discount has been taken off and the tax has been added.

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