Answer:
C
Step-by-step explanation:
12 + 3x
12 + 3(20)
12 + 60
72
A because it can’t be 100 and it can’t be 625 and it can’t be 50 so it has to be A
2(x-3)=7x-31
2x-6=7x-31
-7x -7x
----------------
-5x-6=-31
+6 +6
--------------
-5x=-25
Divide by -5
x=5
3x-2(x+5)=-3+18
15
3x-2(x+5)=15
3x-2x-10=15
x-10=15
+10 +10
--------------
x=25
If you write a number over another number, it's called a FRACTION
Answer is A. It is the center of the circle that can be inscribed in a given triangle
Explanation
The circumcenter is called ”the circumcenter” because it is the center of the circle that ”circumscribes” the triangle.
