Students on a field trip at an amusement park were asked their grade in school. the table shows the results of the survey. grade number of students 4th 45 5th 25 6th 60 7th 50 8th 60 9th 45 what percent of the students surveyed were in 4th grade? round your answer to the nearest percent, if necessary. a. 4% b. 16% c. 45% d. 8%

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.