\documentclass[12pt]{article}
\usepackage{amsmath, amssymb, graphicx, array, fancyhdr, unicode-math, multirow}
\DeclareMathOperator{\Var}{Var}
\DeclareMathOperator{\sd}{SD}
\DeclareMathOperator{\Pois}{Pois}
\DeclareMathOperator{\Bin}{Bin}
\DeclareMathOperator{\NegBin}{NegBin}
\DeclareMathOperator{\sech}{sech}
% Text: Calibri, all bold
\setmainfont{Calibri}
\renewcommand{\seriesdefault}{b}

% Math: choose a math font and visually embolden it
\setmathfont{TeX Gyre Termes Math}                  % base math font
\setmathfont[FakeBold=1.9]{TeX Gyre Termes Math}    % embolden; adjust 1.6–2.4


% header
\pagestyle{fancy}
\fancyhf{}
\lhead{\resizebox{!}{2cm}{I}}
\chead{\raisebox{0.5cm}{\Huge Introduction}} % (add title text if you want)
\rhead{\resizebox{!}{2cm}{I}}
\setlength{\headheight}{2.5cm}
\setlength{\headsep}{12pt} % space between header and body

\begin{document}
\thispagestyle{fancy}


\begin{table}[h!]
\centering

\begin{tabular}{m{1.0in} m{1.8in} m{1.8in} m{1.8in}}
% -------------------- Single --------------
\fbox{\includegraphics[width=1in]{images/single.png}}
  & \includegraphics[width=1in]{images/map1.png} 
  & \includegraphics[width=1in]{images/map2.png} 
  & \includegraphics[width=1in]{images/map3.png} 
\\ 
\\ 
% -------------------- Abstract --------------
\multirow{8}{*}{\fbox{\includegraphics[width=1in]{images/abstract.png}}} 
& $|A \cup B| = |A| + |B|$ & $|C \cup D| = |C| + |D| - |C \cap D|$ & $|X \cup Y| = |Y|$ \\
& $|A \cap B| = 0$ & $|C \cap D| = |C| + |D| - |C \cup D|$ & $|X \cap Y| = |X|$ \\
& $|A \cup B^{c}| = |B^{c}|$ & $|C \cup D^{c}| = |U| - |D| + |C \cup D|$ & $|X \cup Y^{c}| = |U| -|Y| + |X|$ \\
& $|A \cap B^{c}| = |A|$ & $|C \cap D^{c}| = |C| - |C \cap D|$ & $|X \cap Y^{c}| = 0$ \\
& $|A^{c} \cup B| = |A^{c}|$ & $|C^{c} \cup D| = |U| - |C| + |C \cap D|$ & $|X^{c} \cup Y| = |X^{c}|$ \\
& $|A^{c} \cap B| = |B|$ & $|C^{c} \cap D| = |D| - |C \cap D|$  & $|X^{c} \cap Y| = |Y| - |X|$ \\
& $|A^{c} \cup B^{c}| = |U|$ & $|C^{c} \cup D^{c}| = |U| - |C \cap D|$ & $|X^{c} \cup Y^{c}| = |X^{c}|$ \\
& $|A^{c} \cap B^{c}| = |U| - |A| - |B|$ & $|C^{c} \cap D^{c}| = |D| - |C \cap D|$  & $|X^{c} \cap Y^{c}| = |Y^{c}|$ \\
\\

\\
\end{tabular}

% -------------------- Question --------------
\begin{tabular}{m{2.0in} m{2in} m{2in} m{2in}}
\multirow{5}{*}{}
\\ 
\fbox{\includegraphics[width=1in]{images/question.png}} & \fbox{\includegraphics[width=1in]{images/question.png}}  & \fbox{\includegraphics[width=1in]{images/question.png}}  \\
$B = (A \cap B) \cup (A^{c} \cap B)  $ 
 & $D = (C \cap D) \cup (C^{c} \cap D) $
 & $Y = (X \cap Y) \cup (X^{c} \cap Y) $\\
 
\end{tabular}



\end{table}
  
 \newpage
  \thispagestyle{fancy}
  
 \begin{table}[h!]
\centering
% -------------------- Answear  --------------
\begin{tabular}{m{2in} m{2in} m{2in}}
\multirow{5}{*}{}
\\ 
 \fbox{\includegraphics[width=1in]{images/key.png}} & \fbox{\includegraphics[width=1in]{images/key.png}}  & \fbox{\includegraphics[width=1in]{images/key.png}}  \\
 $B = (A \cap B) \cup (A^{c} \cap B)  $ 
 & $D = (C \cap D) \cup (C^{c} \cap D) $
 & $Y = (X \cap Y) \cup (X^{c} \cap Y) $\\
  $B = \emptyset \cup B$ 
 & $D= (C \cap D) \cup (C - (C \cap D))$ 
 & $Y = X \cup (Y - X)$\\
  $B = B$ 
 & $D = D$ 
 & $Y = Y$\\
  $\therefore \includegraphics[width=0.25in]{images/Thumb_up.png}$ 
 & $\therefore \includegraphics[width=0.25in]{images/Thumb_up.png}$ 
 & $\therefore \includegraphics[width=0.25in]{images/Thumb_up.png}$ \\
\end{tabular}
\end{table}


\end{document}
