Answer:
The better deal would be to buy the 50 envelopes for a total of $2.49
Explanation:
Identify what you know:
1) You can buy a pack of 50 envelopes for $2.49
2) You can buy 90 envelopes for $5.50
Divide the number of enveloped by the prices, to find the price of ONE envelope in the pack. See:
$2.49/50 envelopes = $0.0498
$5.50/90 envelopes = $0.061
Also... where is THIS person buying envelopes... I want that price....