Answer:
I think Its D but I dont fully know
12 x 6 equals 72 so 72 + 7 = 79 :)
Your answer is 79
we know that
An <u>angle bisector</u> is a line or ray that divides an angle into two congruent angles
so
in this problem
m∠RST=m∠RSV+m∠VST
m∠RSV=m∠VST
hence
m∠RST=2*m∠RSV --------> equation 1
we have
m∠RST=(6x-24)
m∠RSV=(2x+8)
Substitute in the equation 1
6x-24=2*(2x+8)
6x-24=4x+16
6x-4x=16+24
2x=40
x=40/2
x=20 degrees
therefore
<u>the answer is the option </u>
D definition of angle bisector
and the value of x is 20 degrees