3. (24 marks] For the following declarations, determine the hexadecimal value stored in memory and the on-screen decimal equivalent, i.e. the value displayed with printf("/", variable). Binary-hexadecimal-decimal conversions may be done by calculator, but other steps such as 2's complement must be shown. a) signed char a - -31; b) unsigned int b - 2022; c) unsigned char c - 187; d) signed int d - 1 000 000; e) signed int e = -187; f) signed char / - 187; B) unsigned int g - 1 000 000; h) unsigned char h - 1299