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7-24.
  1. Copy the diagram below on your paper. Use the given information to fill in all of the missing labels. Homework Help ✎

  2. pic

First solve for the lower half of the diagram.

Since the entire diagram is representative of 100% of the students, and the first portion represents 60%, the second portion must represent 40%.

28 students is 40% of how many total students?

To find the remaining number of students for the first portion, subtract 28 from the total number of students.