11. What is the 16-bit hexadecimal representation of each of the following signed decimal integers? a.-24 b. -331 12. What is the 16-bit hexadecimal representation of each of the following signed decimal integers? a.-21 b. -45 13. The following 16-bi hexadecimal numbers represent signed integers. Convert each to decimal . 6BF9 b. C123 14. The following 16-b hexadecimal numbers represent signed integers. Convert each to decimal a. 4CD2 b. 8230 15. What is the decimal representation of each of the following signed binary numbers? a. 101 10101 b. 00101010 c. 11110000 16. What is the decimal representation of each of the following signed binary numbers? b. 11001100 c. 10110111 17. What is the 8-bit binary (two's-complement) representation of each of the following signed decimal integers? b. -42 18. What is the 8-bit binary (two's-complement) representation of each of the following signed decimal integers? a. -72 b.-98 C.26