Mathematics, 27.11.2021 01:40 nunu7773

Two customers went to a post office to buy postcards and large envelopes. Each postcard costs the same amount, and each large envelope costs the same amount. The first customer paid $12 for 14 postcards and 5 large envelopes. The second customer paid $24.80 for 10 postcards and 15 envelopes. What was the cost in dollars of each large envelope? A-$1.42
B- $1.15
C- $0.35
D- $0.63

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