Answer:
x = 27
Step-by-step explanation:
The sum of the angles of a triangle is 180.
180 = 105 + 48 + x
x = 180 - (105 +48)
x = 180 - 153
x = 27 degrees
First of all, the negative sign means that we will turn clockwise.
Since 
is half a quarter, we have:
brings you at half of quadrant IV
brings you on the negative side of the y axis
brings you at half of quadrant III
So, option A is correct.
