Erica and Veronica are making different color backpack tags to sell at school. They decide to sample the population of 300 students to find out what colors students like best. Which method will give a random representative sample?

1) Ask all the band members to name their three favorite colors.

2) Ask each student in their homerooms to name their three favorite colors.

3) Ask 15 students, whose names have been pulled from a hat at each lunch period, to name their three favorite colors.

4) As 12 of their friends to name their three favorite colors.

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.