Mr. Walker asked his students to use the associative property to find an expression that is equivalent to (13 + 15 + 20) + (20 + 47 + 18). The expressions that four students created are shown in the table below.

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=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

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?