Questions on Character Representation

1. How many bits are used for an ASCII character representation?
2. What are both the binary and hexadecimal representations for the characters:
   A. R
   B. :
   C. 8
   D. the NULL character used in C
3. What ASCII character is represented by
   A. 0x44
   B. 0x7b
   C. 0x26
4. A computer is executing a C program that does

   
       char X;
       X = '(' + '1';
       printf("%c", X);
   
   

   What character is printed out?