How many digits do we need to store a 9-digit unsigned decimal number in binary format?(Mark=5\%) . Convert +38 and 24 to 8-bit 1's complement form and add them. (Mark=10\%) 3. Convert +38 and 24 to 3-digit 10's complement form and add them. (Mark=5\%) \%) Which representation requires a simpler hardware design? Sign and Magnitude or 2's Complement? Why?(Mark=5\%)