What was his average speed from hour 4 to hour 7?
5 mph
7 mph
9.7 mph
21 mph

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

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

What is the slope of the line (-7,2) (4,6)