Help please

.11 61% 4:56 PM Mon Feb 14 emissary.edgenuity.com Part 2: Use a decoding matrix. Raya sent an encoded message back to Darnell that provides the location of the next clue. To decode the message, Darnell will need to use the inverse of the 2 x 2 encoding matrix, A. Complete the following problems to determine the next clue. a) What is the determinant of A? Show your work or explain. (3 points) 3 4 A = -2 b) What is the inverse matrix of A? Show how to get A". (4 points)