6.76.3 Can you answer these questions?

6.76.3.1 pdflatex fails to compile a simple tizk code for a simple tree

https://tex.stackexchange.com/landing/r/digest?cta=question&id=576863

I tried to pdflatex the following simple tikz code for drawing a small tree. The error message I got reads 
Package tikz Error: giving up on this path. Did you forget a semicolon?. 
The semicolon is ... 
[pdftex] [tikz-trees]
 

asked by Lunjin Lu https://tex.stackexchange.com/landing/r/digest?cta=user&id=231906 1 vote

6.76.3.2 How do I set a minimum margin distance between figures?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=577004

This my setting 
\begin{figure*}[t] 
\begin{minipage}{.24\textwidth} 
\centering 
\includegraphics[width=1\textwidth, height=3.cm]{figs/1.png} 
\subcaption{} 
\label{1} 
\... 
[spacing] [graphics] [subcaption]
 

asked by REDHWAN https://tex.stackexchange.com/landing/r/digest?cta=user&id=198418 1 vote

answered by leandriis https://tex.stackexchange.com/landing/r/digest?cta=user&id=134144 0 votes

6.76.3.3 LaTeX booktabs package cmidline gets pushed up if another column heading requires more than one line

https://tex.stackexchange.com/landing/r/digest?cta=question&id=576716

Compiling the following code shows the problem. The first table is given in the booktabs documentation. The column following the cmidrule-spanned columns requires a single line of text. The second ... 
[tables] [sectioning] [booktabs]
 

asked by Griffith Feeney https://tex.stackexchange.com/landing/r/digest?cta=user&id=44226 1 vote

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 0 votes