Find cos a in the triangle.

Choose 1

(Choice A)

21/29

(Choice B)

21/20

(Choice C)

20/21

(Choice D)

20/29

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