10.1.3 Can you answer these questions?

10.1.3.1 A cryptic message when converting a Graph to Graphics

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=296047

In Mathematica 13.3 (Windows 11) I do 
 Graph[{1, 2}, 1 \[UndirectedEdge] 2] 
 
then right-click on the result and choose "Convert To Graphics" from the menu ... 
[graphics] [graphs-and-networks] [conversion] [message-coding]
 

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10.1.3.2 How to write down and check the Karush-Kuhn-Tucker conditions?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=295997

This is a simple  touchstone for a serious matter. 
I try to solve with Mathematica 13.3.1 on Windows 10  problem 1278 from "The Kvant". 
Let real numbers $x_1,x_2,\dots,x_n$ satisfy the ... 
[mathematical-optimization] [symbolic]
 

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10.1.3.3 Strategies and practical advice for using saved compiled functions in a package

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=296177

I want to use a compiled function in a package without having to rebuild it each time. This slows down unit testing and loading of the package. 
I have used the example in the link as my starting point:... 
[packages] [compile]
 

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