Solve for x.
6
х
12
15
X=
units

x = 4

Step-by-step explanation:

If a line is parallel to a side of the triangle and intersects the other 2 sides then it divides those sides proportionally, that is

= ( cross- multiply )

4(x - 1) = 12 ( divide both sides by 4 )

x - 1 = 3 ( add 1 to both sides )

x = 4

I'm pretty sure the answers are A and C but B could possibly be an answer too

hope this helped