Positive and negative number line

This task is about positive and negative numbers shown on a number line.
Study the number line and answer the questions below.
 

 

a)
What is the number that should be at
 
  i)
 
ii)
 
iii)
A? __________
 
B? __________
 
C? __________
 
b)
i)

ii)
 
Write the number ⁻5 onto the number line above.

Write the number +4 onto the number line above.
 
c)
What are two different real life situations where negative numbers are used?
 
 
1.
 

2.