Question 7 What is the 16-bit hexadecimal representation of the signed decimal integers -247 OFFE8 FEB5 OFFEB FFD3 Question 8 The 16-bit hexadecimal number C123 represent signed integers. Convert it to decimal. O 27641 16093 19666 32208 Question 9 What is the 8-bit binary (twos-complement) representation of signed decimal integers -5? 11111011 11010110 11110000 10111000 Question 10 What is the sum of hexadecimal integers 6B4 + 3FE? AB2 1106 B82 1316 Question 11 If A is false and B is false, then not (not A and not B) is true. True False