C and D are vertical angles with mC = -x+26 and m D = 2x - 10
What is m D?

Answer:
14
Step-by-step explanation:
Because they are vertical angles, they are congruent. This means you should set them equal to each other and solve.
-x+26 = 2x-10
+10 +10
-x+36=2x
+x +x
36=3x
/3 /3
12 = x
Now we will apply this to mD
2(12)-10
24-10
=14