Question

bri opened a lemonade stand on her street, it cost her $11 to but supplies each day but she only sells the lemonade for $2 a cup. if she wants to make at least $75.00 a day (sales-expenses) what is the minimum amount of cups bri needs to sell each day?

Answer 1

Let x be the number of cups. Profit = revenue − expenses = 2x − 11.
Require 2x − 11 ≥ 75 → 2x ≥ 86 → x ≥ 43.

So Bri must sell at least 43 cups per day.