Easy #6

Geometry Level 1

Australia has rectangular currency notes for \(\$5, \$10, \$20, \$50\) and \(\$100\). These notes are all \(65\) mm wide but each note is \(7\)mm longer than the note of the next lowest value. What is the difference in area, in square millimetres, between the $10 note and the $100 note?

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