Answer:
to figure out the answer / an assignment of values to the variables
Step-by-step explanation:
C is a vertical angle which the vertical side is corresponding to the vertical side of x°.
105°+54°+y°=180°
159°+y°=180°
y°=21°
Meaning, x=21°.
The square root of 100 is exactly 10!
10*10=100
10 squared = 100
Square root of 100=10
It is located at 2.45, almost exactly the middle
Its all about process of elimination. Answer C