[6 points] Give the 8-bit twos complement representations of the following decimal values: 45, 38, 86 Show your work.

[6 points] Compute the sums -45 + -86 and 38 + -86 just as a computer would, using the 8-bit Twos complement representations you found in part (b). Indicate whether each operation results in an overflow. Show your work. You can check your work by converting back to decimal form, but dont need to show this.