Discover answers to your most pressing questions at Westonci.ca, the ultimate Q&A platform that connects you with expert solutions. Explore a wealth of knowledge from professionals across different disciplines on our comprehensive platform. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

[tex]$
\begin{array}{l}
5 + 0 = 5 \\
3 + 4 = 4 + 3 \\
(4 + 7) + 9 = 4 + (7 + 9) \\
8 \times 1 = 8
\end{array}
$[/tex]

None of these answers are correct.