Decrypt the message: "Car" applying the Hill Cipher $2x2$ algorithm with key

$k=\left[\begin{array}{cc}1& 2\\ 4& 7\end{array}\right]$

$\backslash$table$[[O,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25$