Your local newspaper contains a large number of advertisements for unfurnished one-bedroom apartments. you choose 10 at random and calculate that their mean monthly rent is $540 and that the standard deviation of their rents is $80. a. what is the standard error of the mean? b. what are the degrees of freedom for a one-sample t statistic?

Part a: explain why the x-coordinates of the points where the graphs of the equations y = 2−x and y = 8x+4 intersect are the solutions of the equation 2−x = 8x+4. (4 points) part b: make tables to find the solution to 2−x = 8x+4. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 2−x = 8x+4 graphically? (2 points)