Hexadecimal and character sets

1

What is the point of using hexadecimal instead of binary?

2

What is 10111100 in hex?

3

What is the hexadecimal value 2D equivalent in denary (base 10)?

4

How many bytes are used to represent a colour in the 24-bit web colour model?

5

How many hexadecimal digits are needed to represent an 8-bit binary pattern?

6

What colour would be represented using the hexadecimal RGB value #DD00CF ?

7

How would the 4-bit binary pattern 1110 be represented in hexadecimal?

8

Which of these character sets allows the largest number of different characters?

9

Which character set can represent English text using the least storage space?

10

What is the result of the hex sum 4F + A1? What is the equivalent result in binary and denary?