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Tavon has a gift card for 80$ that loses $3.50 for each​ 30-day period it is not used. He has another gift card for $70 that loses $3 for each​ 30-day period it is not used.

1 Answer

3 votes
when they lose the same amout that would be 80 - 3.50x =70 - 3x
User Jalbee
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