Mrs. blue decided to survey the twenty-five students in her homeroom one morning to find out how they were feeling at that moment. here are her results. feeling number of students tired (total) 16 happy (total) 10 tired and hungry 6 tired and happy 3 happy and hungry 2 all three 2 find the number of students that were just tired. answers: 16 7 4 5

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.