Explain to me in words how you would find the slope of this line. And explain how you got the answer

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

Joanie watched 1 out of three of a movie in the morning

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?