The inequality that can be used to determine x, the number of outfits Brianna can purchase while staying within her budget is
Given:
= $39.21
261.04 + 39.21 + 13.57 + 51.03x ≤ 620
51.03x ≤ 620 - 313.82
51.03x ≤ 306.18
x ≤ 306.18 / 51.03
x = 6
Therefore, the number of outfits Brianna can purchase while staying within her budget is 6
Learn more about inequality:
https://brainly.com/question/11234618