Answer:
C
Step-by-step explanation:
congruence means duplicate so you have to see its reflection
Here is your answer in picture...
We know that opposite angle are congruent.
So, We found out that x = 7,
So, Putting x = 7 in 10x+10
So, The measure of angle 10x+10 is 80.
Y=(x+4)*2-3
=x*2+8x+16-3
=x*2+8x+13
So the standard form is B
Here's your answer,
1500÷2
750