1. Convert decimal +49 and +29 to binary, using the signed-2s-compliment representation and enough digits to accommodate the numbers. Then perform the binary equivalent of (+29)+(-49), (-29)+(+49), and (-29)+(-49). Convert the answers back to decimal and verify that they are correct.

2. Convert the following decimal numbers to 8-bit signed 2s complement number representation:

a. 39 =

b. -39 =

c. 115 =

d. -90 =