Indicate in standard form the equation of the line passing through the given points. P(6,2), Q(8,-4)

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

If you answer 2+2 you will get over 80 points

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.