Use the code from the Application Preview and the given encoding matrix A to decode the given message.

1. If the code matrix is

decode the message
49, 59, 133, 161, 270, 327, 313, 381
2. If the code matrix is

decode the message
157, 59, 73, 29, 147, 58, 63, 24, 119, 44
3. If the code matrix is

decode the message
47, 22, 34, 28, 87, 46, 63, 66, 55, 56, 44, 43, 17, 14, 15
(Because A and A-1 are 3 × 3 matrices, use triples of numbers.)
4. If the code matrix is

decode the message
49, 165, 231, 49, 154, 220, 39, 162, 226

5 A 9. 6. 11 3 A = -: 5 2.