The inequality that shows the minimum number of outfits, n, that she should sell is as follows:
40 + 5n ≥ 70
so, n ≥ 6
She works in a clothing store and earns $40 per day.
She earns an extra $5 for each outfit she sells
She wants to earn at least $70 per day.
Therefore, the inequality that shows the minimum number of outfits, n, that she should sell is as follows:
40 + 5n ≥ 70
5n ≥ 70 - 40
5n ≥ 30
n ≥ 30 / 5
n ≥ 6
so, n ≥ 6
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