Find projb a for the given vectors. 
Definitions:
Paragraph
A distinct section of text typically beginning on a new line and dealing with a single theme or idea, separated by spaces or indentation.
Underline Words
A text feature that places a line directly under characters for emphasis or stylistic purposes.
Font Size
The measurement of the height of characters in points, determining how large text appears in a document or on a screen.
Horizontal Ruler
A horizontal guide in software applications that measures width, helps align objects, and manage layout within documents.
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