please show how to do this

4:39 PM Mon Feb 25 Problem #4 (20 points): You have two signed (2's complement 8-bit digital numbers of 0x19 and 0xAC. Now, you can add these two numbers and store the results to 24 bit data memory spaces using the representation format below. (a) Using signed (2's complement) representation, show the 24 bit hexadecimal number (b) Using sign and magnitude representation, show the 24 bit hexadecimal number. Your answer: (A correct answer, unsupported by calculations, explanation, or algebraic work will receive no credit) (a) FFFFC5 b) 80003B