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 $3.96 for 3 postcards and 2 large envelopes.
The second customer paid $4.89 for 2 postcards and 3 large envelopes.
What was the cost in dollars of each large envelope?

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.