Final answer:
A postage meter is a machine that applies postage to an envelope or package. Jesse should use a metric unit of mass, such as grams or kilograms, to weigh the package.
Step-by-step explanation:
A postage meter is a machine that applies postage to an envelope or package. It is commonly used in businesses and postal offices to expedite the process of applying postage. Postage meters allow for efficient and accurate calculation of the correct amount of postage based on the size and weight of the mail.
For example, Jesse, who works in the mailroom of a large company, would use a postage meter to determine the correct postage for a package containing 10 books and some documents. The weight of the package would be measured using a metric unit of mass, such as grams or kilograms.