Pls help with this quiz Write the equation of a line that is perpendicular to y= -1 and that
passes through the point (8,-4). Write your answer in slope-
intercept form, y= mx + b.

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

Analyze the graph of the cube root function shown on the right to determine the transformations of the parent function. then, determine the values of a, h, and k in the general equation.

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?