PLEASE HELP ! -
A linear equation that crosses the y- axis at (0, 60) and the x -axis at (- 2, 0) with a rate of change of 30. What are the coordinates of the y- intercept? and What is the slope of the equation?

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

Find the solution of this system of equation -7x+y=-20 9x-3y=36

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?