(a) Kareem deposited 80 dollars into his savings account.
Write a signed number to represent this change in his account.
(b) The population of a certain city decreased by 44,000 people.
Write a signed number to represent this population change.
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(a) Since Kareem deposited 80 dollars into his savings account, the change in his account can be represented as a positive number: +80.
(b) The population of a certain city decreased by 44,000 people, which can be represented as a negative number: -44,000.
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