Answer:
Step-by-step explanation:
Binomial Expansion:

Pascal's Triangle:
Zero row 1
First row 1 1
Second row 1 2 1
Third row 1 3 3 1
Fourth row 1 4 6 4 1
The relationship between square units is, area is measured in square units. Plus, square units are in an area sometimes.
we have
------> inequality A
The solution of the inequality A is the shaded area below the dotted line
see the attached figure N 
------> inequality B
The solution of the inequality A is the shaded area above the dotted line
see the attached figure N
The solution of the system of linear inequalities is the shaded area between the two dotted lines
see the attached figure N 
therefore
the answer in the attached figure N 
No, because only a minority of the students answered it.