10.84.3 Can you answer these questions?

10.84.3.1 Issue with vfactor in ConTeXt's fraction
10.84.3.2 LaTeX table issue: caption and adjustbox causing compilation error
10.84.3.3 Inserting "background" material after the previous line
10.84.3.1 Issue with vfactor in ConTeXt's fraction

https://tex.stackexchange.com/landing/r/digest?cta=question&id=733264

I am experiencing an issue with the vfactor option in the \frac command in ConTeXt. Below is a minimal working example: 
\startTEXpage[offset=5pt] 
\m{\frac[method=line,vfactor=4000]{c}{c}c} 
\... 
[context] [fractions]
 
asked by Inverted Pastry https://tex.stackexchange.com/landing/r/digest?cta=user&id=318156 Score of 1
10.84.3.2 LaTeX table issue: caption and adjustbox causing compilation error

https://tex.stackexchange.com/landing/r/digest?cta=question&id=733463

I am creating a table in LaTeX using the adjustbox package to resize it to fit the page width. When I add a caption with the \caption command, the compilation fails. 
If I remove the caption, the table ... 
[overleaf] [adjustbox]
 
asked by oo i https://tex.stackexchange.com/landing/r/digest?cta=user&id=366388 Score of 2
10.84.3.3 Inserting "background" material after the previous line

https://tex.stackexchange.com/landing/r/digest?cta=question&id=733582

This is sort of a code review question. 
I wrote a macro \backbelow to insert "background" material after the previous line. This can be used to wrap the text around a figure without wrapfig ... 
[macros] [spacing] [alignment] [backgrounds] [code-review]
 
asked by Alexey https://tex.stackexchange.com/landing/r/digest?cta=user&id=37291 Score of 2