Answer:
Option D
and 
Step-by-step explanation:
step 1
<u>Find the equation of the inequality A</u>
we know that
The solution of the inequality A (dashed line) is the shaded area below the dashed line
The equation of the dashed line is 
therefore
The equation of the inequality A is 
step 2
<u>Find the equation of the inequality B</u>
we know that
The solution of the inequality B (solid line) is the shaded area below the solid line
The equation of the solid line is 
therefore
The equation of the inequality B is 
The system of linear inequalities is
and 
If you are talking about a paper protractor you would put a line on 0 degrees and a line on 68 degrees. Same as a real one.
3/5- -3/4 = 1.35 if you want it as a fraction it’s 27/20