7. If (10111001)2 is an 8-bit ones complement number, what is the decimal equivalent? {{6 points}}

a. 70

b. -57

c. -70

d. -185

8. If (10111001)2 is an 8-bit twos complement number, what is the decimal equivalent? {{6 points}}

a. 71

b. 70

c. -70

d. -71

9. Perform the following binary addition assuming 8-bit unsigned integers (leave the answer as a binary number): {{6 points}}

011101102 + 011010012

10. Perform the following binary multiplication assuming unsigned integers (leave the answer as a binary number): {{6 points}}

11112 x 10012

11. Perform the following binary addition assuming 8-bit signed magnitude integers: {{6 points}}

010111002 + 011110002

12. Perform the following using twos complement binary arithmetic: {{8 points}}

5710 - 3110