Chapter 12 - Data Analysis and Probability - 12-4 Box-and-Whisker Plots - Practice and Problem-Solving Exercises - Page 750: 19

$90\leq$$x\leq94$ $80$ $15$

The score could be greater than or equal to 90 but must be less than 94. 80% of the scores must be lower than or equal to the score. If there are 14 other scores not including yours, it means that there must be 15 in total.