mathamatices ( please help ASAP)

Question

Joyce rented a booth at a carnival at a cost of $95 to sell handmade beaded necklaces. The cost of making and packaging each beaded necklace was $15. If Joyce sells the beaded necklaces at $35 each, how many beaded necklaces must she sell to make a profit of at least $500?

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Answer 1

35 - 15 = 20 profit

20n - 95 ≥ 500

20n ≥ 595

n ≥ 29.75

30 necklaces