tolong bantu nomor 40 pakek caranya

(16 + 30 + 25 + 32 + 27 + 35 + 45): 7
= 30 orang

rata rata x 7 = 16 + 30 + 25 + 32 + 27 + 35 + 45
rata rata x 7 = 210
rata rata = 210/7 = 30

#semoga membantu