La suma de los ángulos internos de un heptágono es:
A. 720°
B. 900°
C. 360°
D. 1260°

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