What is the point of intersection when the system of equations below is graphed on the coordinate plane? (-x+y=4
6x+y=-3)

(1, -3)
(-1,3)
(1,3)
(-1.-3)

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