Line TV bisects <STU, m <STV = (1/4x +8), and m<UTV= (x+2( Find m<STU

I get 25 but the choices are
40
10
20
30

2 answers

well, UV bisects STU, so

1/4 x + 8 = x+2
6 = 3/4 x
x = 8

Now you know x, so you can figure STV=VTU, and STU = STV+VTU

I get 20

How did you get 25?
how do u get 3/4 x