13. solve this binary problem 11110010 - 01001000

A. 10101010₂

B.00101010₂

C. 011100102

D. 00111100₂

9. Convert Signed FFDD₁₆ to decimal

A. 11011101₂

B. 221₁₀

C. 192₁₀

D. -35₁₀

10. Convert 55.5₁₀ To Hexadecimal

A) 37.8

B) 87.3

C. 47.4

D.27.4

12. An 8 bit register may provide storage for two's complement codes within which decimal range

A. -128 to +128

B. -128 to +127

C.+128 to -127

D +128 to -127

IF POSSIBLE CAN YOU PLEASE EXPLAIN HOW YOU GOT THAT ANSWER SO I MAY UNDERSTAND PLEASE AND THANK YOU