1800 people took part in a survey. • 34 34 were aged 25-59 • 15 15 were over 60 • The remainder were under 25 How many were under 25?

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307

What is the equation of the line that passes through (-3,-1) and has a slope of 2/5? put your answer in slope-intercept form