Mathematics, 28.07.2019 05:30, heebi4jeebi

Students sold rafle tickets to raise money for a field trip. the first 20 tickets sold costs $4 each. to sell more tickets, they lowered the price to $2 each. if they raise $216, how many tickets did they sell in all.

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Students sold rafle tickets to raise money for a field trip. the first 20 tickets sold costs $4 each...