A signed number was converted to binary and stored in an $8$ bit memory location. The value in the $m$ below in hex, find the equivalent signed decimal number it represents for each of the following signe $6C$

Decimal equivalent if was stored in Sign Magnitude Notation:

Decimal equivalent if was stored in $1\text{'}$s Complement Notation:

Decimal equivalent if was stored in $2\text{'}$s Complement Notation

Don't forget to include the sign in the answer