please show as much work as possible!

PROBLEM 3 (29 PTS) In these problems, you MUST show your conversion procedure. No procedure = zero points. a) Convert the following decimal numbers to their 2's complement representations: binary and hexadecimal. (9 pts.) -255.6875, 31.625, -128.6875 b) Complete the following table. The decimal numbers are unsigned: (6 pts.) Decimal BCD Binary 127 10111010 Reflective Gray Code 512 10010101 11101010 100001110101 c) Complete the following table. Use the fewest number of bits in each case: (14 pts.) REPRESENTATION Decimal Sign-and-magnitude 1's complement 2's complement -120 10101000 0111010001 000000 1001111 - 64 10000011