Mean annual salary offer for students graduating with degree in accounting in 2010 was $49,722. We sample 50 accounting graduates from 2011 and find the mean and standard deviation to be $49,850 and $3,300, respectively. Do the sample data provide support for the claim that mean salary offer for accounting graduates is higher in 2011 that 2010

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.