Jamal's working memory will allow him to remember the phone number for long time enough to be dial on his landline.
This refers to the little information which can be held in mind that are used in the execution of some cognitive tasks.
An example of a working memory is when one hold a person's address or phone number in mind.
Hence, his working memory will allow him to remember the phone number for long time enough to be dial on his landline.
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