Answer
16
Work Step by Step
Add the number of students from the bottom four categories together, as those are the students who scored below 80
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 8 - Section 8.1 - Reading Pictographs, Bar Graphs, Histograms, and Line Graphs - Practice - Page 536: 5
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