#### Answer

$3$ ounces.

#### Work Step by Step

By looking at the step graph, the highest cost of the postage that's less than 1.25 dollars is about 1.2 dollars, which 3 ounces is the largest envelope.

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

$3$ ounces.

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