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 $22 for 11 postcards and large envelopes. The second customer paid $24.80 for 10 postcards and 16 large envelopes. What was the cost in dollars of each large envelope? A $1.42 B. $0.55 C. $1.60 D. $0.63​