`1) How is -9 (base 10) represented in 8-bit two's complement notation?

a) 00001001

b)11110111

c)11110110

d) 11111001

2) The binary addition of 1 + 1 + 1 + 1 =

A) 1111(base 2)

b) 0001(base2)

C) 0100(base2)

D) 1001(base2)

3) How is 1 (base 10) represented in 8-bit two's complement notation?

A) 1111111-

B) 111111111

C) 00000001

D) 00000010