Why do you need a scanner

Explanation:

Scanners are great for saving old photos or important documents onto your computer for posterity. ... Just as a printer takes computer files and puts them on paper, a scanner does the opposite - it scans physical documents and images and converts them into digital files.

You need a scanner to copy a certain page to duplicate it.

Explanation:

answer; i do believe the correct answer is ( retailing); good luck

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