Mathematics, 28.04.2021 07:20 Aleja9

One customer paid $12 for 14 postcards and 5 large envelopes. Another customer paid $24.80 for 10 postcards and 15 large envelopes. What was the cost in dollars of each large envelope?

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One customer paid $12 for 14 postcards and 5 large envelopes. Another customer paid $24.80 for 10 po...

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