Calvin encoded a secret phrase using matrix multiplication. Using A = 1, B = 2, C = 3, and so on, he multiplied the clear text code for each letter by the matrix mc023-1.jpg to get a matrix that repre

Calvin encoded a secret phrase using matrix multiplication. Using A = 1, B = 2, C = 3, and so on, he multiplied the clear text code for each letter by the matrix mc023-1.jpg to get a matrix that represents the encoded text. The matrix representing the encoded text is mc023-2.jpg. What is the secret phrase? Determine the location of spaces after you decode the text.