(12 pts) Show the binary representation of the following decimal numbers in (i) 2's complement, (i) a) 133,089 b)-138,989 c)7 1's complement, using 20 bits: (6 pts) Convert the following octal...

(12 pts) Show the binary representation of the following decimal numbers in (i) 2's complement, (i) a) 133,089 b)-138,989 c)7 1's complement, using 20 bits: (6 pts) Convert the following octal number to binary, and then to hexadecimal: 376.56 (6 pts.) Convert the following decimal number a) to binary, and b) to base 12, rounding fractional part to . . 4 digits in both cases: 3501.264 . (4 pts) Determine the base x of a number system such that unsigned 2E1(16) 2102)