Plspls pls help Solve the system of equations below then check the solution both algebraically and graphically provide evidence

4x-2y=-2
3x+2y=-12

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220