Solving Moment Problem with Attached Image

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The discussion revolves around solving a moment problem involving two forces and determining the resultant moment about the Oa axis. The user expresses frustration over potential algebra mistakes in their calculations and seeks assistance in verifying their work. They provide an attached image and mention that the correct answer from the book is [26.1i - 15.1j] lb*ft. There is confusion regarding the role of the perpendicular component of F1 in creating torque and a possible error in the \hat{k} component of their moment vector. Clarification on these points is requested to resolve the problem effectively.
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staics help please!

Please help with this problem.. I'm going crazy.

I have attempted the problem and i think my methods are correct. however some algebra mistake is also there i think.

im submitting my work on the thread below

Question: Determine the resultant moment of the two forces about the Oa axis. express the result as a Cartesian vector.

The picture is attached.
Note*: its 80lb that's a bit smudged on the right of the attachment.
 

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here is my work

the book answer is : [26.1i - 15.1j] lb*ft
 

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Isn't it the perpendicular component of F1 that creates the torque about the Oa axis? Also the \hat{k} in \vec{m_1} seems to be incorrect anyways.
 
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