\documentclass[a4paper,twocolumn]{article}
\usepackage{graphicx,cleveref}

\begin{document}

We want to know something about sepals, shown in \cref{fig:sepal_info}. Our data is shown in \cref{fig:sepal_plot}.
\input{fig/sepal_info.tex}
\input{fig/sepal_plot.tex}

Let’s analyse it formally using the following regression:
\input{eq/sepal_reg.tex}

The results of the regression given by \cref{eq:sepal_reg} are summarised in \cref{tab:sepal_reg}.
\input{tab/sepal_reg.tex}

\end{document}